Hey everyone, I am a former Wall Street trader and quant researcher. When I was preparing for my own interviews, I have noticed the lack of accurate information and so I will be providing my own perspectives. One common pattern I see is people building their own algorithm by blindly fitting statistical methods such as moving averages onto data.
I have published this elsewhere, but have copy pasted it entirely below for you to read to keep it in the spirit of the sub rules. Edit: Removed link.

What it was like trading on Wall Street

Right out of college, I began my trading career at an electronic hedge fund on Wall Street. Several friends pitched trading to me as being a more disciplined version of wallstreetbets that actually made money. After flopping several initial interviews, I was fortunate to land a job at a top-tier firm of the likes of Jane Street, SIG, Optiver and IMC.
On my first day, I was instantly hooked.
My primary role there was to be a market maker. To explain this, imagine that you are a merchant. Suppose you wanted to purchase a commodity such as an apple. You would need to locate an apple seller and agree on a fair price. Market makers are the middle-men that cuts out this interaction by being always willing to buy or sell at a given price.
In finance lingo, this is called providing liquidity to financial exchanges. At any given moment, you should be confident to liquidate your position for cash. To give a sense of scale, tens of trillions in dollars are processed through these firms every year.
My time trading has been one of the most transformative periods of my life. It not only taught me a lot of technical knowledge, but it also moulded me to be a self-starter, independent thinker, and hard worker. I strongly recommend anyone that loves problem solving to give trading a shot. You do not need a mathematics or finance background to get in.
The trading culture is analogous to professional sports. It is a zero sum game where there is a clear defined winner and loser — you either make or lose money. This means that both your compensation and job security is highly dependent on your performance. For those that are curious, the rough distribution of a trader’s compensation based on performance is a tenth of the annual NBA salary.
There is a mystique about trading in popular media due to the abstraction of complicated quantitative models. I will shed light on some of the fundamental principles rooted in all trading strategies, and how they might apply to you.

Arbitrage

One way traders make money is through an arbitrage or a risk free trade. Suppose you could buy an apple from Sam for $1, and then sell an apple to Megan at $3. A rational person would orchestrate both legs of these trades to gain $2 risk free.
Arbitrages are not only found in financial markets. The popular e-commerce strategy of drop-shipping is a form of arbitrage. Suppose you find a tripod selling on AliExpress at $10. You could list the same tripod on Amazon for $20. If someone buys from you, then you could simply purchase the tripod off AliExpress and take home a neat $10 profit.
The same could be applied to garage sales. If you find a baseball card for $2 that has a last sold price on EBay for $100, you have the potential to make $98. Of course this is not a perfect arbitrage as you face the risk of finding a buyer, but the upside makes this worthwhile.

Positive expected value bets

Another way traders make money is similar to the way a casino stacks the odds in their favour. Imagine you flip a fair coin. If it lands on heads you win $3, and if it lands on tails you lose $1. If you flip the coin only once, you may be unlucky and lose the dollar. However in the long run, you are expected to make a positive profit of $1 per coin flip. This is referred to as a positive expected value bet. Over the span of millions of transactions, you are almost guaranteed to make a profit.
This exact principle is why you should never gamble in casino games such as roulette. These games are all negative expected value bets, which guarantees you to lose money over the long run. Of course there are exceptions to this, such as poker or card counting in black jack.
The next time you walk into a casino, make a mental note to observe the ways it is designed to keep you there for as long as possible. Note the lack of windows and the maze like configurations. Even the free drinks and the cheap accommodation are all a farce to keep you there.

Relative Pricing

Relative pricing is a great strategy to use when there are two products that have clear causal relationships. Let us consider an apple and a carton of apple juice. Suppose there have a causal relationship where the carton is always $9 more expensive than the apple. The apple and the carton is currently trading at $1 and $10 respectively.
If the price of the apple goes up to $2, the price is not immediately reflected on the carton. There will always be a time lag. It is also important to note that there is no way we can determine if the apple is trading at fair value or if its overpriced. So how do we take advantage of this situation?
If we buy the carton for $10 and sell the apple for $2, we have essentially bought the ‘spread’ for $8. The spread is fairly valued at $9 due to the causal relationship, meaning we have made $1. The reason high frequency trading firms focus so much on latency in the nanoseconds is to be the first to scoop up these relative mispricing.
This is the backbone for delta one strategies. Common pairs that are traded against each other includes ETFs and their inverse counterpart, a particular stock against an ETF that contains the stock, or synthetic option structures.

Correlations

Correlations are mutual connections between two things. When they trend in the same direction they are said to have a positive correlation, and the vice versa is true for negative correlations. A popular example of positive correlation is the number of shark attacks with the number of ice-cream sales. It is important to note that shark attacks do not cause ice-cream sales.
Often times there are no intuitive reason for certain correlations, but they still work. The legendary Renaissance Technologies sifted through petabytes of historical data to find profitable signals. For instance, good morning weather in a city tended to predict an upward movement in its stock exchange. One could theoretically buy stock on the opening and sell at noon to make a profit.
One important piece of advice is to disregard any retail trader selling a course to you, claiming that they have a system. These are all scams. At best, these are bottom of the mill signals that are hardly profitable after transaction costs. It is also unlikely that you have the system latency, trading experience or research capabilities to do this on your own. It is possible, but very difficult.

Mean reversions

Another common strategy traders rely on is mean reversion trends. In the options world the primary focus is purchasing volatility when it is cheap compared to historical values, and vice versa. Buying options is essentially synonymous with buying volatility. Of course, it is not as simple as this so don’t go punting your savings on Robinhood using this strategy.
For most people, the most applicable mean reversion trend is interest rates. These tend to fluctuate up and down depending on if the central banks want to stimulate saving or spending. As global interest rates are next to zero or negative, it may be a good idea to lock in this low rate for your mortgages. Again, consult with a financial advisor before you do anything.

I'm posting this story so people won't hopefully make same mistakes i did. I'm telling my story how i lost +$50 000 in a span of 5 years to CSGO gambling casinos and how in the progress i ruined myself completely. This post will be long but keep in mind that it keeps 5 years of my life inside of it.
Before we go any further in this post, i want to dress one thing up: CSGO is a videogame and the game has different "paintings" for all the guns in the game you can buy. Every skin has some form of value tied on it and you can deposit this skins to csgo gambling sites to play on there. The skin prices can vary from + 0.01 up to +$10000 and more. The casinos are pretty much same as normal digital casinos but the deposit/withdraw method is just different.
Wanted to clear this out of the way so people won't be confused in case you have never heard about CSGO gambling. Now let's get in to the story.
After i turned 18, i started playing CSGO here and there. One day one of my friend hopped online to play with me and he was really hyped since he had just won +$500 in skins from one of the csgo gambling sites. After we played some time i asked him more about the site where he gambled and at night, i logged in. Deposited $10 skin and started to test out the site. Somehow with "beginners luck" i managed to get up to $200 playing roulette and got some skins to myself. I felt like i was in top of the world after winning first time ever on gambling in general.
After my first win I started to visit the same site here and there trying to repeat actions of my first session: deposit 5 -10 dollar items and try to get out something more expensive. At that point the gambling was just all for fun like it's supposed to be. I really didn't care if i lost 10 dollar item if i had good time in the session. I played this way for around a year until i just for some stupid reason decided to start upping a bit my deposits so i could do a bit bigger bets to bring more excitement to the gambling sessions.
With that being said, my casual deposits started to be around 25 dollars from that point every time i decided to go try my luck. I started doing bigger bets and sometimes i won but more often i just lost my deposits in a matter of minutes. After loosing, i just continued to watch other people betting on roulette thinking what i would have bet on now if i still had balance left. It sounds stupid i know, but sometimes it is just fun to watch other people betting.
As the time went on, i found myself gambling more and more often than what i was used to in the past. It all started trying my luck out once in a week, but now it was a daily thing. I started usually my mornings by first depositing to the gambling site before even making a coffee or anything just so i could go straight in action right after my morning coffee/cigarette. I started to spend all my time in gambling sites instead of doing anything else. If i won big, i withdrew and just continued to chat with other bettors and watch other people betting and if i lost my money, i just did the same thing. I guess the reason was because i had nothing else to do. At the time i was still in school, but after that i usually just went back home to wait next day to arrive. All my IRL friends had moved on from videogames and i really didn't have anyone to hang out with after school since i had to move other town to study. I guess the loneliness/boredom was a big factor why i started doing this.
At one night i was drunk and got an idea to try out my luck once again since the gambling site i mainly used had opened straight card deposits. This time i decided to do a "big" deposit so i could have some fun while i was drinking. I deposited 100 dollars and tought this deposit would last long.
I lost it instantly by accidentally pressing "max" button instead of "2x" button that would have put my 1 dollar bet to 2 dollars for that round. 100 dollars on green and "pufff" it was gone. The session lasted like 15 seconds. I was furious about it so i did first time the worst thing you can do which is the good old RE-Deposit.
I re-deposited 200 dollars this time thinking that i could maybe get my 100 dollars back that i accidentally maxed on green. As you may guess, it really wasn't my night and i just somehow lost all the sense of the amounts i was betting. Also since i had redeposited once, it wasn't a problem anymore to do it agen. I kept rage betting trough out the night, until my bank card started to decline the transactions. I didn't think about this too much, i just tought there was some problems in the bank's end and went to sleep.
At the morning i woke up on hangover and then i remembered things getting wild last night. I tought i lost maybe like 400-600 dollars but well things was a bit worse.
I went to check my bank account and i had lost 2500 dollars in earlier night. Keep in mind, i was used to deposit MAX 25 dollars in a day before that. First time ever i felt like i just wanted to throw up and i felt embarrassed for depositing that much. Some people would call it "gamblers guilt".
I decided to try take a break from gambling but i found that it was actually lot harder to do than what i thought since i had gotten used to spend all my time on gambling sites betting or watching other people bet. My break lasted 3 days until i was back at betting. This time things were different.
Before my massive loss i never re-deposited if i lost my money. I always tought it would just not be worth it. My allowance had been 25 dollars for a day really long time but now that line started to fade since i had already "broke that rule". Now i kept putting 25 dollar deposits in and if i lost my money, i would just re-deposit so i can keep gambling. 25 dollars may not be much, but when you deposit that amount x15 times in a day in the spirit of "re-deposit" it really starts to burn a hole in your pocket. At some point i got tired of redepositing again and again so i started to deposit more at once. This is where the tilt betting and "chasing your losses" became kinda new normal if the session was really bad. I lost sense value of money every time i logged in to casino try my luck.
The way i funded my gambling addiction was "savings" account. Just before i moved to new town to study, one of my relative family members i never really got to know passed away and portion of her fortune was given to me, which was ruffly around 35000 dollars. Before i gambled, i never really used this money to anything. It just was there in case if "everything else fails". This money was supposed to be my lifeline trough out the studying time (3 years) so i could focus mainly on school without any worries about income. To top that off, my government actually paid my rent since i was studying, so that 35k pretty much just was there and also getting the education here is free so there were no payments towards it. As you may already guess, i used that account only to feed my gambling habits and that way i was able to deposit hefty amounts if i decided to go that route.
Since i had pretty much no limits anymore, things started to get heated as the time went on. This was last year in the school so i could get my degree and shit really hit the fan. The amounts i started to gamble was way out of my understanding. Usually that normal 50-100 dollar depo would be at the end of the night around +500 or more dollars since i kept redepositing all the time if i was out of balance. I kept doing this every day with some wins and some losses until common thing called losing streak hit me big time. I started losing more and more every single day with no moments on getting profit. Everyday there was fuck ton of redeposits with no withdraws back. I didn't keep any count anymore and as you may guess, the savings account was just fading away faster and faster every single day until short after my graduation the day finally came: i was broke.
After i checked all my bank statements, the truth was revealed: In the span of 3 years, i was negative profit of around 30 000 dollars. Not to even mention that on my first year of school i only did max 10 dollar deposits so most of that had been racked up in 2 years. 5000 from 35000 was used to car repairs and other necessary bills, rest was gambled away.
After i went fully broke, my government started to give me assistance payments witch was around 1100 dollars in a month. This money was supposed to go on rent and other bills, but as you may guess i started using this money to gamble. After i lost heavy portion of the money, i was usually able to just pay a fraction of bills away that i had on my table for each month. This caused me to later on completely lose my credit score. I also remember getting my electricity get taken off 4-5 times since i wasnt able to pay the bill. Also after all i lost my apartment since i wasn't able to pay my rent because my addiction had taken over really bad and i gambled away everything i got. I was forced to move out and i moved in to my family member house. Luckily he had been asking me for years to be his "roommate" so i didn't have to reveal to him that i actually lost my home.
Shortly after moving to my family member, i got my first job and i tought this would be the moment where i will focus on fixing my life up: pay all my debts away and get my credit score back, Save some money and start again. It was nice plan but it didn't really go well. The more i got from the job, the more i deposited away and i was back to my old habits, even after losing my home +30 000 in 2years.
I remember one specific moment from the time i was at my old job: i got +1200 dollars from past 2 weeks of working at 3:00am in to my bank account. When i left my house at 7:30am to go the job, i didn't have enough money to put gas in my tank ( 5 dollars) so i had to walk 6 miles in a full blown rain to my job. i paid rent 400 dollars, rest was gambled away before my shift for the "salary day " even started. It really made me wonder while i was walking there that why im doing this. Im literally throwing everything i get handed over away and it really was the moment where i realised i have to look in the mirror. It's not normal to blow your whole salary away at the same morning you get it before you even head out to work.
After that moment, i started trying to take breaks from gambling more ofter. There were times where i went 5-7 days without it and then i came back to do that all over again but my losses were now way smaller than what they used to be. I lost only 200-400 dollars each month with some profit months, witch was huge milestone to me. Now i actually had usually some money left on my account until new salary day arrived. Ofcourse losing that much in a month is still alot but to compare it to my old habits, i take it more than happily.
With all this being said, you may now think how im doing right now and how do i feel after losing my home | credit score and + 50 000dollars in 5 years?
If im being fully honest, i have mixed feelings about it. Ofcourse it's sad to think how i much i fucked up but at the same time i'm kind of happy that this all happened. The reason why im happy is because i can take this all as a lesson. I maybe lost everything i had and ruined myself in the process but at the same time, im only 24 years old now. I can still build it all back and one day i can look back in this era and laugh about how fucking stupid i was when i was younger.
On the other hand, the thing im most sad about is when i meet my friends and see how good they are doing. Don't get me wrong, im more than happy to see my friends doing good but it really makes you guestion how i would i be doing now if i never entered to csgo gambling casino? Almost all my friends have good jobs, own homes they are paying mortage for so they can one day own it, nice cars and beatiful girlfriends/ wives and some people even have kids and familys. And when i watch back to past 5 years, i literally had all that right from the start in my hands and i just threw it all away. When they were building it all for themselfs, i was in the meantime watching my PC screen and throwing it all away. Kinda ironic when you think about.
Also what i hate is the way how i treated some people when i was at worst of my gambling era. I lost some friends in the process since i never showed up anywhere when they asked me to join them to do something in weekends and also i lost a girl i really cared about since i was too busy on placing bets on digital casino. To sum it all up, i really dont care about the money i lost, I mostly hate how i chanced as a person and how i didn't really give a fuck about anyone around me when i was too focused on nonstop betting. One day i will have enough guts to ask to meet up with this girl and explain why i was the way i was when we had our thing going on. Gambling addiction is really hard thing to explain to someone who has never went it trough themselfs/ seen someone close to them to go trough with it, but i'll try my best to reveal him everything that i have told here now publically. She may just tell me to fuck off but atleast i can be happy when i know that finally she knows the truth of everything i was hiding when we had our thing going on.
Other than that im doing kind of fine. I moved out from my family member house to own home awhile ago. I fucked up yesterday again, i gambled 250 dollars away in a span of couple hours but i left it on there. Instead of putting more money in, i decided that this week i will call my bank provider and take away online payments in general from my bank card. This way i can still use the card in stores and so on but i can't pay anything online. If i have any payments i have to get done via online, ill just go to ATM and take the amount in cash, then give it to my older brother and he will pay it from his account.
I know this may sound really extreme way to solve all this, but this way im literally banning myself from every fucking digital casino there is. It is clear to me that im a problem gambler and i really can't control myself if i face a losing streak. It just too hard to accept it and walk away and ill keep going until i hit rock bottom witch really isn't good escpecially since i lost my job due to COVID and i still have around 10 000 dollars in debts gathered to myself when i was too busy gambling everything i had away. One day im able to pay it all back and get my credit score back but right now, i just need to accept how things are going and move with what i have witch really isn't much.
With all this being said, i really hope this story of life from past 5 years can make some kind of impact to you. If you find yourself casually betting more away than what you first tought you would play/ betting more than you can REALLY afford, please seek some help from friends, family members around you. Don't ruin everything you have same way as i did because let me fucking tell you, it really isn't worth it.
Thanks for reading.

I want to give a warning to anyone thinking of gambling online.
A few months ago I deposited 200$ onto an online gambling site for the hell of it. it was extremely reputable, had 1,000s of reviews and was the first search result on Google.
I played some game called “Book of the dead” and on my 3rd or 4th spin I won 2,000$ with 5 explorer guys popping up in a row.
I decided to play roulette and this monopoly live game. I won something like a 125x on a 100$ bet on the monopoly game.
My balance was over 15,000$. I figured I’ll go get some hookers and blow with this cheddar I stacked up....or on second thought I’ll pay off my student loan debt :)
I sent in my cash out request to my bank. only to get an email 1 hour later saying that I didn’t follow some 100$ max bet rule so all of my winnings are confiscated and my account will suspended.
I find it fascinating that they will let me bet 200$, lose and not bat an eye. But if I bet 200$ and win, it’s a problem.
Anyways take it from me, It’s all a giant scam. If you win anything remotely large, they will take your winnings.
And why wouldn’t they? The companies are located in Greece and other foreign countries so if you wanted to sue them, you better get a million dollar loan as the lawyer fees your about to incur are going to be in the millions.
Proof: https://imgur.com/a/Y6dkyqw

Congratulations! You just won millions of dollars in the lottery! That's great.
Now you're fucked.
No really.
You are.
You're fucked.
If you just want to skip the biographical tales of woe of some of the math-tax protagonists, skip on down to the next comment. To see what to do in the event you win the lottery.
You see, it's something of an open secret that winners of obnoxiously large jackpots tend to end up badly with alarming regularity. Not the $1 million dollar winners. But anyone in the nine-figure range is at high risk. Eight-figures? Pretty likely to be screwed. Seven-figures? Yep. Painful. Perhaps this is a consequence of the sample. The demographics of lottery players might be exactly the wrong people to win large sums of money. Or perhaps money is the root of all evil. Either way, you are going to have to be careful. Don't believe me? Consider this:
Large jackpot winners face double digit multiples of probability versus the general population to be the victim of:
1. Homicide (something like 20x more likely)
2. Drug overdose
3. Bankruptcy (how's that for irony?)
4. Kidnapping
And triple digit multiples of probability versus the general population rate to be:
1. Convicted of drunk driving
2. The victim of Homicide (at the hands of a family member) 120x more likely in this case, ain't love grand?
3. A defendant in a civil lawsuit
4. A defendant in felony criminal proceedings
Believe it or not, your biggest enemy if you suddenly become possessed of large sums of money is... you. At least you will have the consolation of meeting your fate by your own hand. But if you can't manage it on your own, don't worry. There are any number of willing participants ready to help you start your vicious downward spiral for you. Mind you, many of these will be "friends," "friendly neighbors," or "family." Often, they won't even have evil intentions. But, as I'm sure you know, that makes little difference in the end. Most aren't evil. Most aren't malicious. Some are. None are good for you.
Jack Whittaker, a Johnny Cash attired, West Virginia native, is the poster boy for the dangers of a lump sum award. In 2002 Mr. Whittaker (55 years old at the time) won what was, also at the time, the largest single award jackpot in U.S. history. $315 million. At the time, he planned to live as if nothing had changed, or so he said. He was remarkably modest and decent before the jackpot, and his ship sure came in, right? Wrong.
Mr. Whittaker became the subject of a number of personal challenges, escalating into personal tragedies, complicated by a number of legal troubles.
Whittaker wasn't a typical lottery winner either. His net worth at the time of his winnings was in excess of $15 million, owing to his ownership of a successful contracting firm in West Virginia. His claim to want to live "as if nothing had changed" actually seemed plausible. He should have been well equipped for wealth. He was already quite wealthy, after all. By all accounts he was somewhat modest, low profile, generous and good natured. He should have coasted off into the sunset. Yeah. Not exactly.
Whittaker took the all-cash option, $170 million, instead of the annuity option, and took possession of $114 million in cash after $56 million in taxes. After that, things went south.
Whittaker quickly became the subject of a number of financial stalkers, who would lurk at his regular breakfast hideout and accost him with suggestions for how to spend his money. They were unemployed. No, an interview tomorrow morning wasn't good enough. They needed cash NOW. Perhaps they had a sure-fire business plan. Their daughter had cancer. A niece needed dialysis. Needless to say, Whittaker stopped going to his breakfast haunt. Eventually, they began ringing his doorbell. Sometimes in the early morning. Before long he was paying off-duty deputies to protect his family. He was accused of being heartless. Cold. Stingy.
Letters poured in. Children with cancer. Diabetes. MS. You name it. He hired three people to sort the mail. A detective to filter out the false claims and the con men (and women) was retained.
Brenda, the clerk who had sold Whittaker the ticket, was a victim of collateral damage. Whittaker had written her a check for $44,000 and bought her house, but she was by no means a millionaire. Rumors that the state routinely paid the clerk who had sold the ticket 10% of the jackpot winnings hounded her. She was followed home from work. Threatened. Assaulted.
Whittaker's car was twice broken into, by trusted acquaintances who watched him leave large amounts of cash in it. $500,000 and $200,000 were stolen in two separate instances. The thieves spiked Whittaker's drink with prescription drugs in the first instance. The second incident was the handiwork of his granddaughter's friends, who had been probing the girl for details on Whittaker's cash for weeks.
Even Whittaker's good-faith generosity was questioned. When he offered $10,000 to improve the city's water park so that it was more handicap accessible, locals complained that he spent more money at the strip club. (Amusingly this was true).
Whittaker invested quite a bit in his own businesses, tripled the number of people his businesses employed (making him one of the larger employers in the area) and eventually had given away $14 million to charity through a foundation he set up for the purpose. This is, of course, what you are "supposed" to do. Set up a foundation. Be careful about your charity giving. It made no difference in the end.
To top it all off, Whittaker had been accused of ruining a number of marriages. His money made other men look inferior, they said, wherever he went in the small West Virginia town he called home. Resentment grew quickly. And festered. Whittaker paid four settlements related to this sort of claim. Yes, you read that right. Four.
His family and their immediate circle were quickly the victims of odds-defying numbers of overdoses, emergency room visits and even fatalities. His granddaughter, the eighteen year old "Brandi" (who Whittaker had been giving a $2100.00 per week allowance) was found dead after having been missing for several weeks. Her death was, apparently, from a drug overdose, but Whittaker suspected foul play. Her body had been wrapped in a tarp and hidden behind a rusted-out van. Her seventeen year old boyfriend had expired three months earlier in Whittaker's vacation house, also from an overdose. Some of his friends had robbed the house after his overdose, stepping over his body to make their escape and then returning for more before stepping over his body again to leave. His parents sued for wrongful death claiming that Whittaker's loose purse strings contributed to their son's death. Amazingly, juries are prone to award damages in cases such as these. Whittaker settled. Again.
Even before the deaths, the local and state police had taken a special interest in Whittaker after his new-found fame. He was arrested for minor and less minor offenses many times after his winnings, despite having had a nearly spotless record before the award. Whittaker's high profile couldn't have helped him much in this regard.
In 18 months Whittaker had been cited for over 250 violations ranging from broken tail lights on every one of his five new cars, to improper display of renewal stickers. A lawsuit charging various police organizations with harassment went nowhere and Whittaker was hit with court costs instead.
Whittaker's wife filed for divorce, and in the process froze a number of his assets and the accounts of his operating companies. Caesars in Atlantic City sued him for $1.5 million to cover bounced checks, caused by the asset freeze.
Today Whittaker is badly in debt, and bankruptcy looms large in his future.
But, hey, that's just one example, right?
Wrong.
Nearly one third of multi-million dollar jackpot winners eventually declare bankruptcy. Some end up worse. To give you just a taste of the possibilities, consider the fates of:

• Billie Bob Harrell, Jr.: $31 million. Texas, 1997. As of 1999: Committed suicide in the wake of incessant requests for money from friends and family. “Winning the lottery is the worst thing that ever happened to me.
  
• William âBud❠Post: $16.2 million. Pennsylvania. 1988. In 1989: Brother hires a contract murderer to kill him and his sixth wife. Landlady sued for portion of the jackpot. Convicted of assault for firing a gun at a debt collector. Declared bankruptcy. Dead in 2006.
  
• Evelyn Adams: $5.4 million (won TWICE 1985, 1986). As of 2001: Poor and living in a trailer gave away and gambled most of her fortune.
  
• Suzanne Mullins: $4.2 million. Virginia. 1993. As of 2004: No assets left.
  
• Shefik Tallmadge: $6.7 million. Arizona. 1988. As of 2005: Declared bankruptcy.
  
• Thomas Strong: $3 million. Texas. 1993. As of 2006: Died in a shoot-out with police.
  
• Victoria Zell: $11 million. 2001. Minnesota. As of 2006: Broke. Serving seven year sentence for vehicular manslaughter.
  
• Karen Cohen: $1 million. Illinois. 1984. As of 2000: Filed for bankruptcy. As of 2006: Sentenced to 22 months for lying to federal bankruptcy court.
  
• Jeffrey Dampier: $20 million. Illinois. 1996. As of 2006: Kidnapped and murdered by own sister-in-law.
  
• Ed Gildein: $8.8 million. Texas. 1993. As of 2003: Dead. Wife saddled with his debts. As of 2005: Wife sued by her own daughter who claimed that she was taking money from a trust fund and squandering cash in Las Vegas.
  
• Willie Hurt: $3.1 million. Michigan. 1989. As of 1991: Addicted to cocaine. Divorced. Broke. Indicted for murder.
  
• Michael Klingebiel: $2 million. As of 1998 sued by own mother claiming he failed to share the jackpot with her.
  
• Janite Lee: $18 million. 1993. Missouri. As of 2001: Filed for bankruptcy with $700 in assets.
  

So, what the hell DO you do if you are unlucky enough to win the lottery?
This is the absolutely most important thing you can do right away: NOTHING.
Yes. Nothing.
DO NOT DECLARE YOURSELF THE WINNER yet.
Do NOT tell anyone. The urge is going to be nearly irresistible. Resist it. Trust me.
1. IMMEDIATELY retain an attorney.
Get a partner from a larger, NATIONAL firm. Don't let them pawn off junior partners or associates on you. They might try, all law firms might, but insist instead that your lead be a partner who has been with the firm for awhile. Do NOT use your local attorney. Yes, I mean your long-standing family attorney who did your mother's will. Do not use the guy who fought your dry-cleaner bill. Do not use the guy you have trusted your entire life because of his long and faithful service to your family. In fact, do not use any firm that has any connection to family or friends or community. TRUST me. This is bad. You want someone who has never heard of you, any of your friends, or any member of your family. Go the the closest big city and walk into one of the national firms asking for one of the "Trust and Estates" partners you have previously looked up on http://www.martindale.com from one of the largest 50 firms in the United States which has an office near you. You can look up attornies by practice area and firm on Martindale.
2. Decide to take the lump sum.
Most lotteries pay a really pathetic rate for the annuity. It usually hovers around 4.5% annual return or less, depending. It doesn't take much to do better than this, and if you have the money already in cash, rather than leaving it in the hands of the state, you can pull from the capital whenever you like. If you take the annuity you won't have access to that cash. That could be good. It could be bad. It's probably bad unless you have a very addictive personality. If you need an allowance managed by the state, it is because you didn't listen to point #1 above.
Why not let the state just handle it for you and give you your allowance?
Many state lotteries pay you your "allowence" (the annuity option) by buying U.S. treasury instruments and running the interest payments through their bureaucracy before sending it to you along with a hunk of the principal every month. You will not be beating inflation by much, if at all. There is no reason you couldn't do this yourself, if a low single-digit return is acceptable to you.
You aren't going to get even remotely the amount of the actual jackpot. Take our old friend Mr. Whittaker. Using Whittaker is a good model both because of the reminder of his ignominious decline, and the fact that his winning ticket was one of the larger ones on record. If his situation looks less than stellar to you, you might have a better perspective on how "large" your winnings aren't. Whittaker's "jackpot" was $315 million. He selected the lump-sum cash up-front option, which knocked off $145 million (or 46% of the total) leaving him with $170 million. That was then subject to withholding for taxes of $56 million (33%) leaving him with $114 million.
In general, you should expect to get about half of the original jackpot if you elect a lump sum (maybe better, it depends). After that, you should expect to lose around 33% of your already pruned figure to state and federal taxes. (Your mileage may vary, particularly if you live in a state with aggressive taxation schemes).
3. Decide right now, how much you plan to give to family and friends.
This really shouldn't be more than 20% or so. Figure it out right now. Pick your number. Tell your lawyer. That's it. Don't change it. 20% of $114 million is $22.8 million. That leaves you with $91.2 million. DO NOT CONSULT WITH FAMILY when deciding how much to give to family. You are going to get advice that is badly tainted by conflict of interest, and if other family members find out that Aunt Flo was consulted and they weren't you will never hear the end of it. Neither will Aunt Flo. This might later form the basis for an allegation that Aunt Flo unduly influenced you and a lawsuit might magically appear on this basis. No, I'm not kidding. I know of one circumstance (related to a business windfall, not a lottery) where the plaintiffs WON this case.
Do NOT give anyone cash. Ever. Period. Just don't. Do not buy them houses. Do not buy them cars. Tell your attorney that you want to provide for your family, and that you want to set up a series of trusts for them that will total 20% of your after tax winnings. Tell him you want the trust empowered to fund higher education, some help (not a total) purchase of their first home, some provision for weddings and the like, whatever. Do NOT put yourself in the position of handing out cash. Once you do, if you stop, you will be accused of being a heartless bastard (or bitch). Trust me. It won't go well.
It will be easy to lose perspective. It is now the duty of your friends, family, relatives, hangers-on and their inner circle to skew your perspective, and they take this job quite seriously. Setting up a trust, a managed fund for your family that is in the double digit millions is AMAZINGLY generous. You need never have trouble sleeping because you didn't lend Uncle Jerry $20,000 in small denomination unmarked bills to start his chain of deep-fried peanut butter pancake restaurants. ("Deep'n 'nutter Restaurants") Your attorney will have a number of good ideas how to parse this wealth out without turning your siblings/spouse/children/grandchildren/cousins/waitresses into the latest Paris Hilton.
4. You will be encouraged to hire an investment manager. Considerable pressure will be applied. Don't.
Investment managers charge fees, usually a percentage of assets. Consider this: If they charge 1% (which is low, I doubt you could find this deal, actually) they have to beat the market by 1% every year just to break even with a general market index fund. It is not worth it, and you don't need the extra return or the extra risk. Go for the index fund instead if you must invest in stocks. This is a hard rule to follow. They will come recommended by friends. They will come recommended by family. They will be your second cousin on your mother's side. Investment managers will sound smart. They will have lots of cool acronyms. They will have nice PowerPoint presentations. They might (MIGHT) pay for your shrimp cocktail lunch at TGI Friday's while reminding you how poor their side of the family is. They live for this stuff.
You should smile, thank them for their time, and then tell them you will get back to them next week. Don't sign ANYTHING. Don't write it on a cocktail napkin (lottery lawsuit cases have been won and lost over drunkenly scrawled cocktail napkin addition and subtraction figures with lots of zeros on them). Never call them back. Trust me. You will thank me later. This tactic, smiling, thanking people for their time, and promising to get back to people, is going to have to become familiar. You will have to learn to say no gently, without saying the word "no." It sounds underhanded. Sneaky. It is. And its part of your new survival strategy. I mean the word "survival" quite literally.
Get all this figured out BEFORE you claim your winnings. They aren't going anywhere. Just relax.
5. If you elect to be more global about your paranoia, use between 20.00% and 33.00% of what you have not decided to commit to a family fund IMMEDIATELY to purchase a combination of longer term U.S. treasuries (5 or 10 year are a good idea) and perhaps even another G7 treasury instrument. This is your safety net. You will be protected... from yourself.
You are going to be really tempted to starting being a big investor. You are going to be convinced that you can double your money in Vegas with your awesome Roulette system/by funding your friend's amazing idea to sell Lemming dung/buying land for oil drilling/by shorting the North Pole Ice market (global warming, you know). This all sounds tempting because "Even if I lose it all I still have $XX million left! Anyone could live on that comfortably for the rest of their life." Yeah, except for 33% of everyone who won the lottery.
You're not going to double your money, so cool it. Let me say that again. You're not going to double your money, so cool it. Right now, you'll get around 3.5% on the 10 year U.S. treasury. With $18.2 million (20% of $91.2 mil after your absurdly generous family gift) invested in those you will pull down $638,400 per year. If everything else blows up, you still have that, and you will be in the top 1% of income in the United States. So how about you not fuck with it. Eh? And that's income that is damn safe. If we get to the point where the United States defaults on those instruments, we are in far worse shape than worrying about money.
If you are really paranoid, you might consider picking another G7 or otherwise mainstream country other than the U.S. according to where you want to live if the United States dissolves into anarchy or Britney Spears is elected to the United States Senate. Put some fraction in something like Swiss Government Bonds at 3%. If the Swiss stop paying on their government debt, well, then you know money really means nothing anywhere on the globe anymore. I'd study small field sustainable agriculture if you think this is a possibility. You might have to start feedng yourself.
6. That leaves, say, 80% of $91.2 million or $72.9 million.
Here is where things start to get less clear. Personally, I think you should dump half of this, or $36.4 million, into a boring S&P 500 index fund. Find something with low fees. You are going to be constantly tempted to retain "sophisticated" advisers who charge "nominal fees." Don't. Period. Even if you lose every other dime, you have $638,400 per year you didn't have before that will keep coming in until the United States falls into chaos. Fuck advisers and their fees. Instead, drop your $36.4 million in the market in a low fee vehicle. Unless we have an unprecedented downturn the likes of which the United States has never seen, should return around 7.00% or so over the next 10 years. You should expect to touch not even a dime of this money for 10 or 15 or even 20 years. In 20 years $36.4 million could easily become $115 million.
7. So you have put a safety net in place.
You have provided for your family beyond your wildest dreams. And you still have $36.4 million in "cash." You know you will be getting $638,400 per year unless the capital building is burning, you don't ever need to give anyone you care about cash, since they are provided for generously and responsibly (and can't blow it in Vegas) and you have a HUGE nest egg that is growing at market rates. (Given the recent dip, you'll be buying in at great prices for the market). What now? Whatever you want. Go ahead and burn through $36.4 million in hookers and blow if you want. You've got more security than 99% of the country. A lot of it is in trusts so even if you are sued your family will live well, and progress across generations. If your lawyer is worth his salt (I bet he is) then you will be insulated from most lawsuits anyhow. Buy a nice house or two, make sure they aren't stupid investments though. Go ahead and be an angel investor and fund some startups, but REFUSE to do it for anyone you know. (Friends and money, oil and water - Michael Corleone) Play. Have fun. You earned it by putting together the shoe sizes of your whole family on one ticket and winning the jackpot.

This is not mine, the creator of this is u/enderpiet
​
Since the Diamond Casino update, I have seen a large number of 12-year-olds posting Blackjack memes on this sub. As a parent, this has me very worried.
On top of that, I have seen some of the most trustworthy GTA Youtubers giving flawed gambling advice, which can have damaging impact on their gullible audiences.
So that's why I decided to write this up, to educate everyone on the subject, so there will be no more misunderstandings.
(2020 Update down at the bottom.)
If you're one of those Youtubers that wants to use this information in a video, feel free to do so. The more people (especially kids) that become educated about gambling, the better.
But then also please go back and review your own work, and delete or edit the videos that are giving out the wrong advice, like where you're saying you have "a good strategy for making money with roulette", or some other nonsense that I've heard this week. Delete that please.
Before I get into the individual games, I need to discuss a few concepts first, that will make understanding the rest a lot easier.
Expected return and variance
A game like Roulette or Slots has a fixed expected return on your bets. This is a percentage that you have no way of influencing. Say you are flipping a coin against a friend, and you both put up $1. The winner gets the pot. Since the odds are even at 50%, in the long run, you will expect to break even. Your expected return is 100% of your bet.
But imagine if you would play this coin flipping game in a casino against the house. On the "house rules" listed at the table they would probably say that you would only get 95 cents back for every win, while you are forfeiting a dollar on every loss. Would you still play?
Sounds stupid to do so, but still, everybody does it. Every bet they place on Roulette, every coin they put into a Slot machine, is based on the same concept.
Those few cents they take on every bet are their profit margin, and has paid for all the Vegas lights, the Mirage volcanoes, and the Bellagio fountains. Make no mistake - casino gambling games are not designed to make you lose, because sure, you can get lucky on a single night, but they are designed to make them win. That's the beauty of it. They can both exist at the same time.
Too many people that don't see how this works, are just destined for disaster. Just because you went on a lucky streak and won 8 games out of 10, does not mean that flipping coins is a profitable game, or that choosing tails is a winning strategy. Always be aware of the house edge, your true chances of winning, and just realize that you got lucky. There is no such thing as a strategy in flipping a coin that will give you a higher expected return, so it's just pure gambling, just like Slots and Roulette.
Most casino games are made in such a way, that your expected return is a little under 100%. This means that from every dollar bet at the tables, the casino expects to keep a few cents. For individual players, results may vary. Some will win, most will lose. But for the house, it doesn't matter. They take millions of bets each day, so for them, the expected average works out a lot sooner. In short: the house always wins.
When looking at the house edge, we're talking about the expected long-term result, based on the game's house rules. But for a player, it can take literally tens of thousands of hands or spins before you also reach this average number. Until that time, you can experience huge upswings and downswings, that are the result of nothing but short-term luck, which is called variance.
Some games and some bets have a much higher variance than others, which means your actual results will differ enormously from what you're expected to be at.
Take for example betting on red/black at the Roulette table. This is a low-variance proposition, because it has a high percentage chance of occurring, and a low payout.
Contrast this with betting single numbers in Roulette, which only win once every 38 spins on average. This bet has a much higher variance, meaning you can easily hit a dry spell, and not hit anything for 200 bets in a row, or you can see a single number hit three times in five consecutive spins. This is not a freak occurrence in high-variance bets.
Even though the expected return in both these bets is exactly the same, there's a huge difference in variance, causing massive differences in short-term results, which can go both ways. You need to be aware of this, before you decide what types of bets you are comfortable with placing.
Gamblers' Fallacy
Another thing to realize, is that each individual game, hand, or spin, is completely independent from the one(s) before it, and after it.
Gamblers tend to believe, that the chance of a certain outcome is increased, based on previous results.
The most famous example comes from the Casino de Monte Carlo, where the Roulette wheel managed to land on black 26 times in a row. Gamblers lost many millions during that streak, all frantically betting on red, believing that the odds were in favor of the wheel coming out on red, after producing so many blacks. This is not true. Each round is completely independent, and the odds are exactly the same.
You will hear people say things like a Blackjack table being "hot" or "cold", which is completely superstitious, and should be ignored. The exception was when Blackjack was being dealt from a shoe. It made card counting possible. But with the introduction of shuffle machines, and continuous shuffling like is being used in GTA, this no longer exists.
This is also why "chasing your losses" is a very bad idea. After being on a losing streak for some time, many gamblers believe that now it's their turn to start winning. So they will often increase their bet size, believing that when their predicted winning streak comes around, they will win back their losses, and more.
The reality of it, more often than not, is that people will indeed start playing higher and higher limits, until they are completely broke. Nobody is ever "due for a win". There is never a guarantee that you're about to start winning. In fact, the opposite is more likely to be true. You are, after all, in a casino.
Betting systems
Some people like to think that they have a fool-proof betting system, like the Martingale system. Simply increase or even double your bet when you lose, and keep doing that until you win. In theory, this system will always win. So that's why table limits were introduced, and where the system fails.
If you start at the Roulette table, playing red/black, with a small 750 chip wager, and just double your bet every time you lose, you only have to lose 6 times in a row, before you will be betting the table limit of 48,000, just to get that 750 chip profit.
Sure, you can go on all evening without this happening, winning 750 chips each time, but this losing streak only has to happen once, and you're bust. Any betting system like this is ill-advised, because you are hugely increasing your so-called "risk of ruin", and that's what we were trying to avoid.
And even if your starting bet is only 100 chips, after only nine straight losses, and nine doubled bets, you are betting the table limit at 50,000 chips. If you lose that bet, you're 100,000 chips in the hole, with no way to recover that with your 100 chip base wager.
So don't believe anyone that says this is the perfect system to always win in the casino. Sooner or later they will understand why they were wrong, when they're asking you for a loan.
Set your limits BEFORE you start playing
One final point before we get into the games, a general tip for people that head out to play: money management.
Just like in real life, before you go to the casino, decide on a maximum amount that you are WILLING TO LOSE.
Bet small enough, so that amount can last you through the entire evening, and you will not be tempted to run to the ATM to continue playing.
Considering GTA money, some people will be comfortable losing 1% of their GTA bank balance, some people will be comfortable with gambling away 5% of their total GTA savings. It's up to you what you can handle. Decide for yourself where it will start to hurt, and don't cross that line.
But whatever number you decide on, as soon as you lost that amount, get up and walk away. Don't chase your losses, stick to your limits, and accept that this has not been your day. There is always another game tomorrow. Always agree with yourself on a simple stop-loss rule, how much you would want to lose at most, and simply stop playing when you get there.
Same goes for winning. You can decide on a number, how much profit you would like to take away from the casino. You can go on a hot streak and be up half a million in a short period of time, but if you would continue to play longer, looking for more, chances are that you're going to lose it all back.
Most people are happy with doubling their daily casino budget, for example. Others are looking for 10 bets profit in Blackjack. Whatever you choose, when you hit that number, you can stop playing and bank your profits, or you can continue playing if you're still enjoying the games, but then only just play minimum bet sizes. Then you're just playing for fun, not for money. You've already made your profit, so simply keep it in your pocket, and don't risk losing it again.
Either way, decide on what your money management strategy will be, and STICK TO IT.
Casino games in GTA Online
Now, I'm going to dive into the games that you can find at the Diamond casino, ordered from worst to best.
6) Slots
Generally the rule is this: the less strategy a game has, the worse it is for the player. And with slots, this is definitely the case.
The only influence you have, is choosing what type of machine you're going to play. Basically, there are two types of slot machines:
-high frequency, low payout slots
-low frequency, high payout slots
In the first type, there is no huge (progressive) jackpot on offer, just your average selection of prizes that don't go up to crazy amounts.
This will result in a player having many more spins resulting in a win. The amounts that you win on the bigger prizes, will be smaller, but they do come around more often. This type of slot machine has a lower variance, which means that your money should last you longer, winning many smaller prizes along the way to keep you going.
The second type of slot machine lures you in with the temptation of a huge jackpot prize. Even though the long-term expected return on these machines is the same as the previous type, the prize distribution is hugely different. The large jackpot prize weighs heavily on the scale of expected return, but the chance of it hitting is extremely small. This results in a much higher variance on this type of machine. Usually your money will go down very fast, because the smaller prizes are less rewarding than on the other type of machine.
At the Diamond, the info screen says the player return at slots is set at 98.7%. This means that, on average, for every maximum bet of 2,500 chips, you expect to lose 32.5 chips.
This might not seem like a lot, but the danger of slots is that the game is extremely fast. You can spin about once every 6 seconds, which would result in an expected LOSS of about 20,000 chips per hour of playing.
But again, in this long-term expected number, the large jackpot awards are also factored in, and as long as you don't hit those big prizes, you'll see your money go down a lot faster.
In any case, thank heavens the max bet is only set at 2,500, or else we would see more players go bankrupt at alarming rates.
Optimal strategy for slots:
There is none. Because after betting, you have no more influence over the outcome. The only choices you have, is what type of machine you want to play at, and how much money you are going to risk. And those are all personal preference. As long as you stick to your loss limits, as discussed above, there's no harm in having a go every once in a while, hoping to get a lucky hit. Just realize that you don't have a high chance of scoring a big win, so as soon as you do, get up and walk away.
5) Roulette
Roulette is also a game where you have no influence over the outcome. There is zero skill involved. You place your bet, and that's it.
In traditional French roulette, a table has only the single-zero, but of course, for American casinos that wasn't enough of a house edge, so they simply doubled their profits by adding a second zero. The house edge was increased from 1/37 to 1/19, which is huge.
This makes playing on a double-zero roulette table by definition a sucker's play.
The payouts scale evenly, which means that a bet on a single number, and a bet on half of the numbers, and everything in between, yields the same expected return. The only difference, again, being the variance that you are willing to subject yourself to.
The player return for double-zero Roulette for all bets is 94.74%.
Except for the 5-number bet, which can only be made by placing a bet on the two top rows that contain 0, 00, 1, 2 and 3. The expected return on this bet is lower: 92.1%. This is because it only pays out 6-1. Why? Well, the number 36 isn't divisible by 5, so the greedy people that came up with double-zero Roulette had to round it off someway, and as expected, it wasn't going to be in the players' favor.Just remember that that 5-number bet is the worst bet at the table, and should be avoided. All other possible bets have the same expected return.
So it really doesn't matter how you spread your bets, if you bet only one chip, or if you litter the entire table with a bucketload of chips. Each chip you put out there, has the same expected return, so there is no strategy that will improve your long-term results.
Assuming that you're betting the maximum table amount of 50,000 chips, you will be looking at an expected loss of about 2,630 chips per spin. Considering that a round takes about 45 seconds to complete, your expected LOSS at the GTA Roulette tables will be around 200,000 chips per hour of playing.
Optimal strategy for double-zero roulette:
Stay away. Stay far away.
4) Three Card Poker
With Three Card Poker, we come across the first game where there is actually some strategy involved. You get to look at your cards, and then decide if you want to fold, and surrender your ante, or double your bet.
Additionally, you can choose to place a side bet on "Pair Plus", which offers progressive payouts.
There are some websites out there that ran all the numbers with computer simulations, and even though I would like to quote the source here, these websites are understandably littered to the max with online casino ads, so that's why I have decided against doing that.
Optimal strategy for Three Card Poker:
For this game you only have to remember one strategy rule: Always bet on any high card queen-six-four or better, and fold any high card queen-six-three or lower. That's it. Just don't forget to double check if you're not folding a straight or a flush, and you'll be fine.
This strategy will result in an expected return of 96.63%.
The Pair Plus sidebet, with the payout table that is used at the Diamond casino, gives you an expected return of 97.68%, which is actually a bit better than the main ante bet.
So by playing both wagers, you're reducing your expected losses per bet, but since you're betting more, you're also increasing your expected loss per hour.
My advice would obviously be to not play this game at all, but if you do, put as much of your bet as possible on the Pair Plus, while making our Ante bet as small as you can.
To be able to compare it to the other games at the Diamond, let's stay on that 50,000 maximum wager, meaning making your ante bet 35,000, and your pair plus bet 15,000, if the table would allow it.
This results in an expected loss of about 1,525 chips per hand, and with a round taking about 45 seconds, this adds up to an expected LOSS of around 120,000 chips per hour of playing. In comparison, if you would only play the ante bet for 50,000 per hand, you expect to lose 1,685 chips per hand, which means an expected LOSS of about 135,000 chips per hour. So the more out of that 50,000 wager you can put on the "Pair Plus" sidebet, the better.
Even though it may be fun to try out this game for a bit, since there's only one simple strategy rule to follow, you'll soon find yourself robotically grinding down your bankroll until it has vaporized. You're not missing out on anything if you skip these tables, there is no real challenge.
Just like with Roulette and Slots, if you want to try it out nonetheless, you can just bet the minimum amounts and only play for fun, so it won't matter if you win or lose.
3) Blackjack
Blackjack is the most complicated game by far. Simply because the player has to make a series of decisions, which will largely decide the outcome. Luckily, there is such a thing as an optimal strategy, which will be outlined below.
However, the strategy is also dependent on the house rules. These not only affect your expected return, but in some places also your decisions.
Here are the house rules at the Diamond casino:
-The game uses 4 standard decks, and a continuous shuffle.
-Blackjack pays 3 to 2, dealer checks for early blackjack.
-No insurance offered, no surrender.
-Dealer stands on soft 17.
-Double down on any two cards.
-Player can split only once, but doubling after split is allowed.
-Seven-Card Charlie.
Under these rules, and following the "basic strategy" chart, your expected return at Blackjack is a shade under 99.6%, which is extremely good for a casino game, that's why Blackjack should be your table game of choice.
But it comes at a price: you are going to have to memorize the relatively complicated strategy chart, or at least stick it to your monitor until you have it in your head. But in case you ever stumble into a real-life casino, you won't regret having this table memorized, so I would definitely advise you to work on that.
The strategy chart might look complicated at first, but you will be able to notice certain patterns. Your decisions are mainly based on the dealer's upcard, which is basically divided into a weak card (2 to 6), and a strong card (7 to ace).
When a dealer shows a strong card, you will be hitting more often with the risk of going bust, but when a dealer shows a weak card, you're not taking that risk, and you will be standing more, but also doubling and splitting more. You want to increase your bets when the odds are in your favor, and get out cheap when they're not.
But it also helps to take some time to think about why a certain advice is given. For example, why does it say that you always have to split two eights, even against an ace. Well, that's because two eights equals 16, which is the worst total you can have. It's better to split them up, and give yourself a chance of finding a 17, 18 or 19 with the next card. Once you see the logic in that, you'll have one less thing to memorize.
The playing advice in the basic strategy chart is a result of computer simulations that ran all possible outcomes against each other, and produced the most profitable decision for each situation. So you can't go wrong following it.
Optimal strategy for Blackjack with Seven-Card Charlie
The added house rule of Seven-Card Charlie, adds a small advantage for the player, and it does influence a few strategy decisions. For example, you might have a 14 with 6 cards, against the dealer's 5 upcard.
Normally this would be an automatic stand, but if you're only one card away from the Seven-Card Charlie, meaning an instant win for the player, regardless of the dealer's hand, it turns it into a hit.
Here's the most optimal strategy chart to follow for the Diamond Casino house rules:https://prnt.sc/olct6g
You'll see that two fives are missing from the chart, and that's because you never split them. You treat them as a regular 10. You also never split tens. Just stand on 20.
If you follow this strategy religiously, even with a maximum wager of 50,000 chips, you only expect to lose about 215 chips per hand, and with rounds taking about 30 seconds, that amounts to an expected LOSS of 26,000 chips per hour, which is only half a bet. A small price to pay for an hour of entertainment.
But since the expected return is so extremely close to 100%, you will see more positive short-term results than with other games. But obviously it can also swing the other way. Again, this is supposed to be the game where your money lasts you the longest, but always set your loss and win limits before you sit down. That rule simply always applies.
Still, even with optimal strategies applied, all these games are expected to lose you money in the long run. So betting any kind of large amounts is not advised. If you simply want to enjoy playing these games, there's nothing wrong with betting a minimal amount. Playing these games for a longer period of time will already cost you money anyway, since your daily property fees will still be charged while you're playing in the GTA casino. As long as you can play for fun, there's nothing wrong, but when you see yourself betting insane chunks of your entire bank balance to try to recoup some unfortunate losses, you're doing it wrong.
As the commercials in Britain all correctly say: when the fun stops, stop.
2) Virtual Horse Racing
Now onto the good stuff. I ran some numbers, and I believe Rockstar has made a mistake with the horse racing game. Because as it stands, and if I read the numbers correctly, this game is actually profitable for the player. You can actually make money with this, at least, until Rockstar figures out their mistake and patches it.
If anyone wants to jump into the math and double check this to make sure, please do so. I will add any corrections to this post. This is one of those "to good to be true" things, so I keep thinking that I might have overlooked something. So please verify it if you can.
The setup is this. There is a pool of 100 horses, each with their own attached payout. These are divided into 3 groups, ranked by their odds. From each group, 2 horses are randomly selected to provide a pool of six runners for you to bet on.
Now it's not an actual race you're looking at. You are looking at a raffle. This is important to realize.
Each horse gets awarded a certain number of raffle tickets. The favorites get awarded more tickets than the underdogs, and therefore, have a higher chance of winning.
If this distribution works like it does in the real-life casinos, then the raffle tickets are awarded according to the betting odds.
Example 1: imagine a race with 3 runners, all have 2/1 odds, representing a 33.3% chance of winning. (Because 2/1 means 2 AGAINST 1, so 3 total.) In this case, each horse gets one third of the raffle tickets, giving them an equal chance to win.
Example 2: imagine a race with 3 runners, one has 1/1 odds (or EVENS), representing a 50% chance of winning, and the other two horses are marked up as 3/1, with a 25% chance of winning. The favorite gets half the tickets, the other two get a quarter of the tickets each.
A ticket is drawn, and you'll have a winner.
It doesn't matter in this game which horse you bet on, because the expected return is always the same: 100% or break-even, for the above examples.
Now, what happens if the percentages don't exactly add up to 100%?
They must add up to 100%, because there will always be a winner. And only one winner.
So when this is the case, the actual winning chances of the horses are adjusted to meet the 100% requirement, using their payout odds to determine the scale.
So, if the represented percentages add up to more than 100%, the actual winning chances of the runners will be DECREASED, resulting in all bets becoming losing propositions for the players.
Example: In a 6-horse race, all runners are listed at 4/1, representing a 20% chance. Only with six runners that amounts to 120%. So all chances are scaled down by 1/6th, to end up at 100%.
This means your horse's chances are reduced from 20% to 16.67%, turning it into a losing bet: 5 times you will lose your bet, and 1 time you will win, but only get 4 bets back in this instance, instead of 5. A losing bet in the long run.
This is the type of odds that you find in regular casinos, with fields as large as 15 runners to bet on, where the assumed winning chances always add up to more than 100%, therefore are decreased for all runners, resulting in a house edge.
But in GTA Online's Inside Track, there are other scenarios, because of the small field, and the way that they are put together.
In some cases, the represented percentages when added up, are LESS than 100%, meaning that the actual winning chances of all runners, are INCREASED.
This creates profitable bets for the players, because in the long run, you're expecting to win more money than you lose. This is a gambler's dream, pure and simple.
So, according to the in-game information, the three groups of horses are divided as follows:
-Favorites: EVENS to 5-1
-Outsiders: 6-1 to 15-1
-Underdogs: 16-1 to 30-1
Let's take the two most extreme examples to show what's happening.
The worst possible field to bet on: two runners at EVENS, two runners at 6-1, and two runners at 16-1.
EVENS represents a 50% chance, 6-1 is 14.29%, and 16-1 is 5.88%. Add those up and you land on a total of 140.34%.
This means that the actual winning chances of the horses are decreased by 28.75% (to get that 140% down to 100%), which makes betting on this field extremely unwise.
A horse at EVENS will only come in as a winner 35.63% of the time, instead of 50%,
a horse at 6-1 will only win 10.18% of the time,
and an underdog at 16-1 will only win 4.19% of the time.
The expected return on a bet on any of the horses in this field is only 71.26%, so a maximum bet of 10,000 chips on any of these horses holds an expected LOSS of 2,875 chips.
These returns are the same, because the winning chances are scaled equally, according to the payout numbers. So it really doesn't matter which horse you bet on, in the long run, you expect the same results.
But as explained before, it does influence variance, and therefore your short-term result, which can swing both ways.
But now, the best possible field to bet on: two runners at 5-1, two runners at 15-1, and two runners at 30-1.
Odds at 5-1 represents a winning chance of 16.67%, 15-1 odds means 6.25% chance, and 30-1 odds means a 3.23% chance of winning. Add these six horses together, and you only get 52.285%.
This means that, to get from 52% to 100%, the actual winning chances of these horses will be almost doubled! Multiplied by 1.91 to be exact.
So the 5-1 favorites will now win 31.88% of the time, instead of 16.67%,
the 15-1 runners will win 11.95% of the time,
and the underdogs at 30-1 odds will still win 6.17% of the time.
When betting on this field, the expected return on your bet is 191.25%!
This means that a max bet of 10,000 chips will result in an expected PROFIT of 9,125 chips.
This is printing money, if there ever was such a thing.
Optimal strategy for Virtual Horse racing
So all you have to do, is only bet high on the games where you have an expected positive return, and bet the absolute minimum on the games where your expected return is negative. Or back out of the racing game to refresh the field.
If you don't have a way to quickly add up all the percentages, and until somebody shows up here with a neatly formatted table, just use a few general rules of thumb:
-Always bet the maximum on a race with favorites at 2/1 and 3/1 or higher in it.
-Simply skip all races with two favorites at EVENS in it, and at EVENS and 2/1. Or bet the minimum, if you can't skip or refresh the field.
-To decide if you should play races with other favorite combinations EVENS and 3/1, EVENS and 4/1, EVENS and 5/1, or two favorites at 2/1, the payouts on the other four runners determine whether or not it's profitable to play them. The results of betting on these fields vary from an expected 1,330 chip loss (worst-case) to an expected 1,680 chip win (best-case), with a max bet of 10,000 chips.
But if you're not looking for another strategy chart, you might just want to skip these borderline cases, and just cherry pick the best ones, which are easy to recognize, and with which you can never go wrong.
It's difficult to put a number on an expected win-rate, because it all depends on which fields you get presented with, but it's not unreasonable to state that you can maintain a steady win-rate of around 200,000 chips per hour, with about 50 seconds per race.
Remember, you're not trying to win every race. You're trying to win the most money per hour. So don't sweat it when you bet on a 4/1 favorite, and lose a couple of races in a row. It will still be more profitable in the long run. You have the math on your side.
To reduce negative variance, always bet on the favorite, when betting on profitable fields. We're not gambling anymore, we're grinding out a steady profit. We want to keep the swings to a minimum.
I contacted Rockstar support to verify if this is indeed how it works, but the only reply I got after 6 weeks is that they were "looking into it".
User u/Garsant made a useful Excel-worksheet, available for you to download, where you can quickly type in the payouts on the horses, to see if it produces a profitable bet or not. You can find it in his post here: https://www.reddit.com/gtaonline/comments/ekp8na/gta_online_inside_track_odd_calculato
1) Wheel of Fortune
The number one profitable casino game in GTA Online is obviously the Wheel of Fortune, because it costs you nothing to play.
Unfortunately, you only get one free spin per day, but it holds great value, so make sure you do it.
With a chance to win a super car, vehicle discounts, expensive mystery prizes (which also can be vehicles), and a lot of cash and chips, the expected return on a single spin is around $100,000 in value.
So don't forget your daily spin, it's definitely worth your time.
2020 Update:
As of the Diamond Casino Heist update, the Inside Track horse racing is confirmed to still be as profitable as outlined above.The only thing that seems to be changed, is that you can't refresh the field anymore by backing out of the screen. This does affect your hourly rate in a negative way, but does not change the fact that this game has a huge positive expected return, and should be your go-to when you're trying to take money from the house, without having Lester's nagging voice in your ear. That should also be worth something.
And with that, I conclude my 5,000 word essay on gambling in GTA. Questions, comments, feel free to add your input to this guide.
Cliffs:
-Gambling games should only be played for fun, not for big money. You should expect to lose in the long run. The house always wins.
-A casino game doesn't have a memory, and betting systems don't work.
-Set your limits before you start, how much you are willing to lose or win, and then walk away when you get there.
-Don't play slots, roulette, or three card poker.
-Only play blackjack following a basic strategy chart (https://prnt.sc/olct6g).
-Inside Track betting can be played profitably, if you only bet on fields WITHOUT a heavy favorite.
-Wheel of Fortune is always your best bet, because it's a free bet.