hall of filth
The greatest longshot wins in history. Each one reframed as what $1 would have returned. These are the bets that broke the math, the bookmakers, and the brains of everyone watching.
Every story here links back to today's board — because the modern equivalents of Leicester City and Buster Douglas are being priced right now. Somewhere on Kalshi, there's a market at 3 cents that everyone thinks is a joke. Most of the time, they're right. But not always.
the stories
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Trump 2016: When the Prediction Markets Got It WrongThe escalator ride that broke every model.$1 → $150
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Buster Douglas: 42-to-1 and the Night Tyson FellForty-two to one. The only thing crazier than the odds was the eighth round.$1 → $42
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Leicester City: 5000-to-1 and the Greatest Underdog StoryFive thousand to one. They weren't joking. They should have been.$1 → $5,000
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The 2004 Red Sox: Down 3-0 and the Comeback That Shouldn't ExistDown three games to none. Against the Yankees. In October. Sure.$1 → $25
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Appalachian State vs Michigan: The Upset That Broke College FootballAn FCS school. In the Big House. Against a top-5 team. On the first day of the season.$1 → $1,000
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Biggest Longshot Wins in Sports HistoryHistory is written by the underdogs. Sometimes.$1 → $5,000
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The Miracle on Ice: What $1 Would Have PaidDo you believe in miracles? The market didn't.$1 → $35
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What Would $1 Have Paid on Famous Bets?History, reframed as a betting slip.$1 → $5,000
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Strangest Bets Ever MadePeople have always been like this.$1 → $100
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Biggest Parlay Wins EverParlays: the lottery ticket of the betting world.$1 → $50,000
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GameStop: When Reddit Broke the MarketReddit vs Wall Street. A dollar said maybe. A lot of dollars said maybe.$1 → $120
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George Whitesides, the Rocket Man on the CA-27 Primary SlipA buck says the man who ran the rocket company holds the rocket district.$1 → $2.17
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Lear deBessonet and the Dollar Bet on Best Direction of a MusicalA buck says the woman named Lear gets a happier ending than the play.$1 → $10
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Someone Is Betting a Dollar on a 130-Year-Old Haystack Paintingwaterlilies > your entire portfolio$1 → $4.17
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NASA, the Moon, and the $1 Contract Betting Against a Slipping Launch Schedulethe launch schedule is currently under construction$1 → $15.15
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obama federally charged before 2027, priced as a dollar betthe payout is large because the market thinks the answer is no.$1 → $14.39
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Taylor Swift, Pope Leo XIV, and the Kalshi Market That Lists Them in the Same SentenceBejeweled, Vatican edit.$1 → $16.67
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The Polymarket Contract Asking Whether a U.S. Congressperson Will Walk Into Tehran by June 30congressional delegations to Tehran historically land in the fiction section$1 → $111.11
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Weird Prediction Markets Report: 107 Days, 600 Markets, One $2,000 Payout$1 → $0
All historical odds and returns are illustrative unless otherwise noted. Past results do not predict future outcomes. Longshots are longshots for a reason.