130+ Years of Historic Casino Wins
Published: April 16, 2026
Casino King Presents
The Biggest Casino Wins
in History
Every legendary jackpot, impossible table run, and life-changing spin - documented, ranked, and told in full
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I've always been drawn to the big win stories. Not because any of us are walking into a casino and pulling a $39 million slot jackpot - the odds on that particular machine are roughly 1 in 49.8 million - but because these tales represent some of the most genuinely extraordinary moments in gambling history. Some of these wins are pure, dumb, astronomical luck. Others took years of preparation, mathematical precision, and the kind of nerve most of us will never quite understand. A few of them involve legal battles that are still being talked about today.
The team has gone properly deep on this one. We've tracked down every major documented win we could verify, cross-referenced the facts, organized the data, and profiled the most remarkable gamblers who ever sat down at a table or pulled a lever. Across more than a century of casino history, these are the wins that will never be forgotten.
The team has gone properly deep on this one. We've tracked down every major documented win we could verify, cross-referenced the facts, organized the data, and profiled the most remarkable gamblers who ever sat down at a table or pulled a lever. Across more than a century of casino history, these are the wins that will never be forgotten.
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The Rankings
The All-Time Top Wins - Ranked
This table covers single-session wins and documented jackpot payouts. Archie Karas' figure represents peak accumulated holdings during "The Run" rather than a single session - excluding him from any all-time list would simply be wrong. Where figures are estimated or disputed, we've flagged them. The table is ordered by dollar amount; game type and context differ significantly between entries.| # | Winner | Year | Game | Where | Win Amount |
|---|---|---|---|---|---|
| 1 | Anonymous 25-year-old software engineer from LA | 2003 | Megabucks Slots | Excalibur, Las Vegas | $39.7M |
| 2 | Archie Karas Professional gambler | 1992-95 | Table Games | Multiple casinos, Las Vegas | ~$40M* |
| 3 | Cynthia Jay-Brennan Cocktail waitress, age 37 | 2000 | Megabucks Slots | Desert Inn, Las Vegas | $34.9M |
| 4 | Kerry Packer Australian media billionaire | 1995 | Blackjack | MGM Grand, Las Vegas | ~$26M* |
| 5 | Anonymous | Nov 1998 | Megabucks Slots | Palace Station, Las Vegas | $27.5M |
| 6 | Anonymous | 2002 | Wheel of Fortune Slots | Caesars Palace, Las Vegas | $22.6M |
| 7 | Anonymous British soldier | 2015 | Mega Moolah (Online) | Online (Guinness confirmed) | $23.6M** |
| 8 | Elmer Sherwin 92-year-old WWII veteran | 2005 | Megabucks Slots | Cannery Casino, N. Las Vegas | $21.1M |
| 9 | Don Johnson Businessman, horse racing executive | 2011 | Blackjack | Multiple casinos, Atlantic City | $15M |
| 10 | Phil Ivey & Kelly Sun Professional poker player | 2012 | Baccarat | Borgata, Atlantic City | $9.6M*** |
** Largest verified online slot jackpot at time of payout. Confirmed by Guinness World Records.
*** Ivey was ordered to return these winnings by courts in New Jersey. The win itself is not in dispute - only the legality of the method used.
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Slot Machine Records
The Megabucks Machine - A History of Jackpots
If one machine has defined the concept of the life-changing jackpot, it's Megabucks. IGT's linked progressive network - launched in March 1986 as a direct response to state lotteries stealing business from Nevada casinos - connects slot machines across the state, with the jackpot seeded at $10 million (raised from $7 million in September 2005) and climbing with every $3 spin across every connected machine. The odds of hitting it are approximately 1 in 49,836,032.The machine has produced more documented multi-million-dollar jackpot winners than any other single game format in casino history. The wins below are the confirmed standouts.
Largest Verified Megabucks Jackpots (USD) - All Time
Figures represent gross jackpot payouts before tax and payment structure decisions. Most winners opted for the 25-year annuity over a lump sum (which pays roughly 55-60% of face value). The $10M reset value applies from September 2005 onward; before that it reset at $7M.Cynthia Jay-Brennan - The Win That Turned Tragic
Cynthia Jay was a 37-year-old cocktail waitress who had gone to the Desert Inn with her boyfriend to see a lounge show. Afterward, she sat down at a Megabucks machine and played $21 - her usual amount when the jackpot got large. She turned to leave, then decided to put in one more $6. The first $3 did nothing. The last $3 hit three Megabucks symbols. She had spent exactly $27.The payout was $34,959,458.56 - the world record for a slot machine jackpot at the time. At a news conference the next morning she said: "The people I had in my life last week are going to be the people in my life next week." Six weeks later, a drunk driver with 16 prior arrests rear-ended her car at a red light. Her sister, Lela Anne Jay, was killed at the scene. Cynthia was left quadriplegic - paralyzed from the upper chest down. She remains so today.
The Desert Inn itself was demolished in 2001 to make way for what became Wynn Las Vegas. Of all the stories in this piece, hers is the one that stays with you.
Elmer Sherwin - The Man Who Hit Megabucks Twice
On November 22, 1989 - the opening night of The Mirage casino on the Las Vegas Strip - 76-year-old World War II veteran Elmer Sherwin put around $100 into a Megabucks machine and won $4.6 million. It was the largest slot jackpot in Las Vegas history at the time. He spent the money traveling and living well. He also spent the next 16 years doggedly hunting the jackpot again.On September 15, 2005, at the age of 92, he walked into the Cannery Casino in North Las Vegas and hit Megabucks for $21.1 million - becoming the first and only person ever to win the jackpot twice. He donated a portion of his winnings to victims of Hurricane Katrina. He passed away in 2007 at 93. "I was after the prestige of hitting it twice," he told a local TV station. "'Cause I knew no one has done it." The odds of one person accomplishing this twice are somewhere in the range of trillions to one.
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Table Game Legends
The Men Who Scared Las Vegas
Slot machines are luck. Full stop. But at the table games, skill, discipline, mathematical knowledge, and the ability to stay composed under pressure all matter. The three men profiled below didn't just get lucky. They showed up with plans, executed them, and walked away with fortunes. Las Vegas still talks about all three of them.Archie Karas - "The Run"
Archie Karas arrived in Las Vegas in December 1992 with $50 in his pocket. He borrowed $10,000 from a friend, played pool and poker, and ran it up to $17 million. He then took that $17 million to the baccarat and dice tables at Binion's Horseshoe and ran it up to approximately $40 million. He played $300,000-per-hand baccarat. He essentially cleaned out any professional poker player willing to sit across from him.This is considered by many who study gambling history to be the single greatest documented gambling streak of all time. It lasted almost three years. Then Karas started losing. By 1995 he had given it all back. "The Run" is not a story about winning - it's a story about what happens at the absolute outer limits of human risk tolerance, and about the gravitational pull of gambling once you're in deep enough. He remains one of the most fascinating figures in casino history.
"I had no concept of losing. I thought I was invincible." - Archie Karas, on The Run
Don Johnson - The Blackjack Negotiator
Don Johnson is not a card counter. He never needed to be. In 2011, Johnson won approximately $15 million from three Atlantic City casinos - the Borgata, Caesars, and the Tropicana - across about six months of play. His method was elegant and completely legal: because he was betting at such enormous levels, the casinos competed for his action by offering him rule concessions. And Johnson - who had spent years studying blackjack mathematics - negotiated those concessions brilliantly.He secured a 20% loss rebate on sessions where he lost more than $500,000. He negotiated rule changes that reduced the house edge to near zero. Combined with flawless basic strategy execution, the conditions he played under were effectively a coin flip - or, in some configurations, marginally in his favor. He won $6 million from the Tropicana in a single session. The casinos eventually figured out what had happened. By then, it was too late.
Kerry Packer - The Man Who Terrified the MGM Grand
Kerry Packer was an Australian media billionaire who played casino games at a scale that genuinely frightened the houses he played in. His typical blackjack bet was $150,000 to $250,000 per hand. He often played multiple hands simultaneously - sometimes seven at once - meaning up to $1.75 million at risk on a single deal. In 1995, Packer reportedly won between $20 million and $40 million from the MGM Grand in Las Vegas in a single session. The casino declined to comment publicly on the figure.He is also said to have tipped casino staff $1 million after a big session. He was, by all accounts, roughly break-even over his lifetime at the tables - but the individual peaks were staggering. By most measures, he was the most fearsome high-roller who ever walked into Las Vegas. Packer passed away in 2005.
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By the Numbers
Wins by Game Category
Looking at the 50 largest documented casino wins across history, here's roughly how they break down by game type. Slots dominate because of linked progressive jackpot networks like Megabucks, which have generated more enormous single-event payouts than any other format. Note these are directional estimates, not precisely measured figures.Estimated Distribution - Top 50 Documented Casino Wins by Game Type
Slot Machines - 45%Megabucks, Wheel of Fortune, Mega Moolah, and other linked progressives
Table Games (BJ / Poker) - 30%Karas, Johnson, Packer, and other card table legends
Baccarat - 15%Asian high-roller sessions and documented edge play
Roulette - 7%Historic bank-breaking sessions and all-in moments
Sports Betting / Other - 3%Verified single-ticket wins and other formats
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Historical Perspective
Big Wins by Decade
The scale of documented casino wins has grown dramatically across the decades, driven by linked progressive jackpot networks, the growth of Las Vegas and Atlantic City as global destinations, the rise of international high-roller culture, and the increasing willingness of the very wealthy to bet at scale. The 2000s are the undisputed peak decade by raw documented dollar amounts.Approximate Combined Value - Top 5 Documented Wins Per Decade (USD)
Combined totals represent estimated aggregate of top 5 documented wins per decade. Includes both slot jackpots and table game hauls. Not inflation-adjusted. 2020s figure reflects data through 2025 only.♠
At the Wheel
Roulette - Two Moments That Became Legend
Roulette doesn't generate many appearances in the all-time wins list because the house edge (2.7% on a European wheel, 5.26% on American) is difficult to overcome at meaningful scale. There is no skill that removes the edge. But two moments from roulette history have become permanently embedded in casino lore.Ashley Revell - All In on Red
Ashley Revell, a 32-year-old British man, sold everything he owned - house, car, clothes, watch, all of it - and raised $135,300. He flew to Las Vegas, walked into the Plaza Hotel, and placed every dollar on Red at the roulette table. The ball landed on Red 7. He walked out with $270,600. Sky One filmed the entire thing for a documentary called "Double or Nothing." He reportedly used the winnings to start an online poker company.The arithmetic of what he did is worth sitting with: his probability of winning was 18 out of 38 pockets, or 47.37% on that American wheel. He had a 52.63% chance of walking out of that casino with nothing. That's not a strategy. That's one of the most audacious single bets ever placed on camera.
Charles Wells - "The Man Who Broke the Bank at Monte Carlo"
Charles Wells was an English con artist who arrived at the Casino de Monte-Carlo in July 1891 with around 4,000 francs and won over one million francs across two visits. He "broke the bank" at least a dozen times - meaning the table's reserve was exhausted and play suspended while more chips were brought in. His exploits inspired Fred Gilbert's music hall song of the same name, which became a Victorian hit.How he did it has never been conclusively established - the most plausible explanations involve either a biased wheel (manufacturing tolerances of the era were far looser) or an aggressive progressive betting system riding extraordinary variance. He returned to Monte Carlo in November 1891 and won again. He was later convicted of fraud for an unrelated scheme and died in poverty in Paris in 1926.
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Baccarat and Controversy
Phil Ivey and the Edge Sorting Saga
Phil Ivey is widely regarded as the greatest living poker player. He is also at the center of one of the most legally contested casino win stories of the modern era.What Is Edge Sorting?
Playing cards are cut with rotating blades during manufacturing. Due to tiny imperfections in this process, some cards develop subtly different patterns on opposite long edges. If you can identify how a card is oriented - and arrange for specific high-value cards to be rotated during play, typically by making "superstitious" requests to dealers - you can identify high cards before they're revealed. This flips the house edge significantly in the player's favor. Spotting these microscopic manufacturing differences under casino lighting, while sustaining the concentration required to execute the strategy, is a remarkable cognitive feat.Both courts ruled that edge sorting constitutes cheating because it requires deceiving casino staff into rotating specific cards. Ivey's argument - that he had simply used sharper observation than the casino - was rejected. The wins are not disputed. The money is. It's one of the most genuinely interesting legal and ethical questions casino history has produced, and depending on how you read it, you can arrive at very different conclusions.
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Key Moments
130+ Years of Historic Casino Wins
1891
Charles Wells Breaks the Bank at Monte Carlo
Wins over 1 million francs across two visits. Breaks the table twelve times. Inspires a hit Victorian song. Dies in poverty 35 years later.
1962
Ed Thorp Publishes "Beat the Dealer"
Establishes card counting as a mathematically legitimate blackjack strategy. The era of the advantage player begins. Las Vegas panics and changes its rules - then reverses course when business drops.
1989
Elmer Sherwin Wins $4.6M on Opening Night of The Mirage
The 76-year-old WWII veteran wins the largest slot jackpot in Las Vegas history at the time - on the very first night The Mirage opens for business. He will hunt the jackpot again for 16 years.
1992-95
Archie Karas Runs $50 to $40 Million - "The Run"
The greatest documented gambling streak in history. $50 to $40 million over approximately three years in Las Vegas. Then it all goes back. Every dollar of it.
1998
$27.5M Megabucks Hit at Palace Station
November 15, 1998. At the time the largest slot jackpot ever. A record that would hold for just over a year.
2000
Cynthia Jay-Brennan Wins $34.9M at the Desert Inn
January 26. $27 total spend. World record jackpot. Six weeks later: a drunk driver, her sister killed, Cynthia left quadriplegic. The most bittersweet story in gambling history.
2003
Anonymous Engineer Wins $39.7M at the Excalibur
March 21. A 25-year-old software engineer from LA, in Vegas for the NCAA Tournament, hits $39.7 million on a $3 Megabucks spin. Still the world record for a land-based slot jackpot.
2004
Ashley Revell Bets Everything on Red - and Wins
$135,300 of worldly possessions. One spin of a roulette wheel. Red 7. $270,600. Filmed for television. Still the most outrageous single bet in documented casino history.
2005
Elmer Sherwin Hits Megabucks Again - $21.1M at Age 92
The only person ever to win the Megabucks jackpot twice. At the Cannery Casino, North Las Vegas. He donates to Katrina relief. He passes away two years later.
2011
Don Johnson Wins $15M from Atlantic City
Six months. Three casinos. $15 million. No card counting. Just exceptional negotiation, mathematical knowledge, and flawless execution.
2012
Phil Ivey Wins $9.6M at Borgata via Edge Sorting
Courts later order him to return it. The legal precedent reverberates through casino law on both sides of the Atlantic.
2015
British Soldier Wins $23.6M Online - Guinness World Record
A British army sergeant wins £13.2M ($23.6M USD) on the Mega Moolah progressive slot. Guinness confirms it as the largest online slot jackpot ever won at that time.
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Did You Know
Fast Facts and Remarkable Numbers
Megabucks Odds The probability of hitting the jackpot on any single qualifying spin is 1 in 49,836,032 - worse than most state lotteries. Playing non-stop at one spin per minute, you'd expect to wait roughly 95 years between wins.
Kerry Packer's Tip After one large session, Packer reportedly tipped casino staff $1 million directly. The MGM Grand's quarterly earnings reportedly took a visible hit from his biggest winning sessions.
The MIT Team's Run The MIT Blackjack Team - profiled in "Bringing Down the House" - operated across the 1980s and 1990s and is estimated to have won between $57 million and $400 million using legal card counting strategies.
Las Vegas Dominance Of the top 20 documented single casino wins in history, 14 took place in Las Vegas. Atlantic City accounts for 3. The remainder split between Monte Carlo, London, Sydney, and online platforms.
Fastest Win on the List Ashley Revell's $135,300 - all his worldly possessions - was resolved in under 30 seconds. One spin. No skill required. No strategy needed. Just a 47.37% shot at doubling everything.
Jay-Brennan's Total Spend Cynthia Jay-Brennan spent exactly $27 on the Megabucks machine before winning $34.9 million - one of the best returns on investment in recorded history, and one of gambling's most tragic stories.
Bill Benter - The Billion-Dollar Horseplayer Arguably the most successful gambler in history, Bill Benter built a computer model for Hong Kong horse racing and is estimated to have won over $1 billion across his career. He was eventually barred from the Hong Kong Jockey Club.
Don Johnson's Best Single Night $6 million from the Tropicana Atlantic City in a single session. Roughly 12 hours of play. Perfectly executed basic strategy plus a 20% loss rebate negotiated in advance.
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Final Thoughts
What These Stories Actually Tell Us
After going deep on all of this material, here's where I land: the biggest casino wins in history fall into a few very distinct categories. There are pure luck wins - the Megabucks jackpots, Revell's roulette spin - where the only thing that matters is whether the universe felt like cooperating that day. There are skill-adjacent wins where the player had genuine mathematical knowledge and either negotiated favorable conditions or identified an exploitable edge (Don Johnson being the cleanest example of this). There are extraordinary outliers like Karas whose run simply exists outside normal probability. And there are the very wealthy, like Packer, for whom the sums were staggering but the bankroll made them manageable either way.The thread that runs through all of them is that they are genuinely exceptional. Megabucks has paid out roughly a dozen enormous jackpots across 40 years of continuous operation on hundreds of machines across Nevada. Don Johnson's opportunity existed because a specific moment in Atlantic City's economic decline made casinos desperate enough to make negotiating errors. Karas ran $50 to $40 million exactly once, and nobody has come close to replicating it.
These are not templates. They are not strategies to copy. They are, in the truest sense of the phrase, once-in-a-lifetime stories. Which is exactly why we can't stop reading about them.
