Suspicious Spain Match at the World Cup? Post-Tournament Warning Issued

The Copenhagen Group is an international collaborative network established under the Council of Europe Convention on the Manipulation of Sports Competitions (Macolin Convention). Its objective is to detect, prevent, and investigate potential match-fixing cases.

During the World Cup, the group collaborated with FIFA's Special Task Force for Integrity, monitoring every match played. The group recently published a summary report, stating that after thorough analysis, it issued seven yellow alerts.

"According to the group's adopted definition, such alerts are flagged due to several different indications pointing to irregularities, which may include unexplained fluctuations in betting odds, social media rumors, or information from external sources.

The group categorizes events into four color-coded categories: green (normal), yellow (slightly elevated alert level), orange (elevated alert level), and red (highest alert level)," The Athletic reported.

The portal reported that, according to its sources, these events included Themba Zwane's red card in the opening match of the tournament and a lengthy VAR review that led to the disallowance of Ferran Torres' goal in Spain's match against Saudi Arabia.

However, the match between the reigning world champions and Cape Verde also drew significant attention. The Copenhagen Group investigated high activity on the cryptocurrency prediction market Polymarket, where approximately $4.8 million in bets were placed on Spain failing to defeat their opponent. The match ultimately ended in a goalless draw.

The group also addressed the situation surrounding American forward Folarin Balogun. Shortly after his red card in the Round of 16 against Bosnia and Herzegovina, Polymarket opened a special prediction market asking whether he would play in the USA's next match against Belgium.

FIFA's Disciplinary Committee eventually suspended his ban, allowing him to play. The report highlights that no similar market was created for any of the other 14 players who received red cards throughout the entire tournament.

FIFA's Special Task Force for Integrity, in its own report, stated that it found no irregularities, which contradicts the Copenhagen Group's findings. However, a gambling industry expert confirmed that the reported alerts do not necessarily indicate manipulation.

"The scale of betting during the World Cup is so immense that it's very difficult to draw any conclusions based on this alone. The Copenhagen Group's alerts can be explained by unusual behavior, such as odds changes or liquidity associated with hedging positions.

There are many explanations unrelated to manipulation. The biggest concern is situations where conflicts of interest might arise, and potential inside information could be exploited in these matters.

Regarding prediction markets, we can detect certain unusual behaviors, but we must be very cautious, as they can also be used for hedging positions in markets," explained Christian Kalb, who has previously collaborated with the Copenhagen Group.

While the full report is still pending, The Athletic already reports that the total value of all bets placed during the 2026 World Cup is estimated to have reached approximately $240 billion.