2026 World Cup》Cape Verde's shutout upset, Polymarket's whale suddenly wiped out, becoming the biggest loser overnight

The 2026 World Cup experienced a major upset, with Spain being held to a draw by Cape Verde, causing a whale trader who heavily bet millions of dollars on Spain to suffer a devastating loss, while players who bet against it reaped a $4.7 million profit.

A huge upset at the World Cup caused millions of dollars in bets to vanish instantly

In the group stage of the 2026 World Cup, one of the most shocking upsets of the tournament so far occurred. Spain, which was widely favored before the match, faced Cape Verde (Cape Verde) for the first time in the World Cup and ultimately settled for a 0-0 draw, shocking fans worldwide and the prediction markets alike.

Image source: ELTA Sports

The biggest loser in this match was not the Spanish national team, but a whale trader on the prediction platform Polymarket who wagered over $1 million on Spain to win. Because the prediction market uses result-based settlement, if the event does not turn out as expected, the value of related positions can plummet or even become zero.

Image source: X/@PolymarketSport A whale trader on the prediction platform Polymarket who bet over $1 million on Spain to win

After the final whistle, this million-dollar bet almost instantly evaporated, making the trader one of the most notable victims in this World Cup prediction market. However, where some lose money, others make money. Another trader named "Fishalive" bet $427k that Spain would not win and ultimately earned $4.7 million, achieving a leap in wealth.

Image source: X/@PolymarketSport Another trader named "Fishalive" bet that Spain would not win and ultimately earned $4.7 million

Market prediction accuracy at 98%, yet Cape Verde managed to hold a crucial point

According to Polymarket data, the pre-match market predicted Spain's victory probability to be over 98%, while Cape Verde’s chance of earning points was considered extremely low.

Many traders viewed this game as a relatively stable profit opportunity, hoping to exchange large sums of capital for limited but high-probability returns. However, football matches are always full of variables—strength gaps, in-game conditions, tactical arrangements, and individual player performances can all change the final outcome.

During the match, Cape Verde demonstrated high defensive discipline, successfully neutralizing Spain’s attacking threats multiple times. The 40-year-old goalkeeper Vozinha and the entire defensive line performed excellently, ultimately securing a draw and earning a highly symbolic point for the team.

Image source: Athlon Sports Cape Verde’s 40-year-old goalkeeper Vozinha, with outstanding defense, earned the team a valuable 1 point

Prediction market once again shows a high-probability failure case

This incident quickly sparked heated discussions within the crypto community and betting markets. Many analysts believe this is a classic example of "high probability does not mean zero risk."

Prediction market prices reflect the collective expectations of market participants, not the actual future outcome. Even if market consensus is highly aligned, results can still differ dramatically due to a few overlooked factors.

Some traders point out that when market probabilities exceed 95%, many tend to ignore tail risks, further amplifying their positions. Once an upset occurs, losses often far surpass initial estimates.

Polymarket World Cup trading continues to heat up

As the 2026 World Cup officially kicks off, Polymarket has become one of the most active sports prediction markets worldwide. From crowning champions, qualifying for the group stage, to match results, a large number of crypto investors are participating in trading.

Recently, the trading volume related to the World Cup has continued to rise, making prediction markets an increasingly important indicator of global sports sentiment. The result of Spain being held to a draw by Cape Verde again demonstrates the unpredictable nature of football matches.

For prediction market participants, this game also serves as a reminder that even when facing outcomes deemed almost certain, risk management and position control remain the most vital survival principles. For the whale who heavily bet millions, this draw has undoubtedly become the most expensive market lesson during the World Cup.

Further reading
2026 World Cup Predictions: Foreign media use 7 AI models to forecast the champion and dark horses—yet the result is surprising?