Leaderboard & Biggest Upsets

Not technically an upset — but the story here is that Polymarket called it when nobody else did. While every major poll showed a 50/50 race, Polymarket traders pushed Trump to 65% by election week. The market was right. The polls weren't. This became the defining case study for prediction market accuracy and put Polymarket on the front page of every major newspaper worldwide. Volume exceeded $500M on this single market.

In November 2024, Bashar al-Assad had been in power for 24 years and the market priced his continued presidency at 90%. Within days, rebel forces swept across Syria in a lightning offensive. By December 8, Assad had fled to Russia. A 90% market resolved NO in under two weeks. Traders who held YES shares lost everything. Those who bought NO at 10¢ collected $1.00. One of the most dramatic reversals in Polymarket history.

After Macron called a surprise snap election in June 2024, his coalition was initially favored at 71% to retain a majority. The left-wing coalition (NFP) surged in the final days and the market cratered. Macron's party finished third, the NFP won the most seats, and France entered political deadlock. Traders who bet against the consensus made 3x their money. A reminder that political markets can flip fast when momentum shifts.

In November 2022, FTX was the second-largest crypto exchange in the world. A week before its collapse, the market priced it as 85% likely to remain solvent. Then a CoinDesk report revealed FTX's balance sheet was almost entirely FTT tokens. Binance announced it was selling its FTT. Within 8 days, one of the biggest crypto companies in history was bankrupt and its CEO Sam Bankman-Fried was under arrest. The NO holders made 6x their money.