A high-stakes wager on Polymarket ended in a catastrophic $1 million loss after Spain’s World Cup opener against Cape Verde finished in a shock 0-0 draw. The trader had placed the entire sum on a Spanish victory, which the prediction market gave an implied probability of over 91% before kickoff.
The reigning European champions, carrying a 30-match unbeaten run, were expected to sweep aside the debutant African nation at Mercedes-Benz Stadium in Atlanta. Instead, Cape Verde’s veteran goalkeeper Josimar Évora delivered an eight-save masterclass to deny stars like Lamine Yamal and Ferran Torres, securing the nation’s first-ever World Cup point.
The wager would have paid out $1,085,943.48 had Spain won. Instead, the trader lost the full principal. In stark contrast, another market participant who bought ‘No’ shares on a Spanish victory at an average price of just nine cents walked away with a $4.3 million profit once those shares resolved to $1 each.
The outcome serves as a sobering reminder of the extreme volatility in blockchain-based betting markets. Even heavy favorites can fall, turning seemingly safe bets into total wipeouts—and rewarding contrarian positions handsomely.
