Prediction Markets Claim Larger Share of U.S. Sports Betting During 2026 World Cup

Data from H2 Gambling Capital shows that prediction-market platforms captured approximately 27 percent of all legal U.S. sports-betting volume during the 2026 FIFA World Cup, whose final took place on July 19, and this figure represented a tripling of their share from the 9 percent recorded at the beginning of the year. Kalshi recorded record trading volumes while also attracting higher daily app users than DraftKings or FanDuel throughout the tournament period. These developments highlight increased competition from platforms regulated by the Commodity Futures Trading Commission that combine sports-style contracts with contracts on other events.

Volume Shifts During the Tournament

Estimates indicate that prediction markets expanded their portion of the overall market as the World Cup progressed, moving from a smaller base early in the year to the 27 percent level by the conclusion of the event. Kalshi stood out in this environment because its trading activity reached new peaks and its application drew more daily users than the two leading traditional sportsbooks. This pattern occurred even though prediction markets operate under a different regulatory framework than state-licensed sportsbooks and offer contracts tied to outcomes beyond sports results.

Regulatory and Accessibility Differences

Platforms such as Kalshi and Polymarket function under CFTC oversight, which permits them to list contracts on a wide range of topics while also including sports-related propositions. Traditional sportsbooks, by contrast, operate under state gaming commissions and focus primarily on sports wagers. The prediction-market operators extended access to users aged 18 and older in additional states, a policy that broadened their potential user base compared with many sportsbook applications that maintain higher age thresholds in certain jurisdictions. Aggressive marketing campaigns accompanied these changes and contributed to the observed increase in activity during the World Cup window.

Pressure on Established Sportsbooks

Traditional operators encountered measurable competition as prediction-market platforms secured a larger slice of betting activity. The shift coincided with the World Cup schedule and produced higher engagement numbers for Kalshi on a daily active user basis than either DraftKings or FanDuel achieved during the same stretch. Market observers tracking these figures noted that the combination of broader age eligibility and cross-topic contract offerings allowed the CFTC-regulated platforms to draw users who might otherwise have placed wagers exclusively through sportsbook channels.

Post-Tournament Context in August 2026

By August 2026 the tournament results had already fed into ongoing volume reports, and industry analysts continued to monitor whether the elevated share held by prediction markets would persist beyond the World Cup. The 27 percent figure recorded during the event provided a benchmark against which subsequent months could be measured, while Kalshi’s user metrics during the final weeks of July supplied concrete data points for comparing platform performance across regulatory categories.

Contract Structures and Market Reach

Prediction markets list contracts that settle on specific outcomes, including sports results, and these contracts trade continuously until resolution. Because the same platforms also host contracts on political, economic, and entertainment events, users encounter a single interface for multiple categories. This structure differs from sportsbooks, which concentrate their offerings on athletic contests and related props. The dual focus helped Kalshi and Polymarket maintain trading interest even when live sports action paused between matches, contributing to the overall volume gains reported by H2 Gambling Capital.

Conclusion

The 2026 World Cup period demonstrated a clear expansion in the role of CFTC-regulated prediction markets within the legal U.S. betting landscape. Kalshi’s record volumes and superior daily app usage relative to major sportsbooks, alongside the tripling of the combined prediction-market share to 27 percent, supplied measurable indicators of shifting user preferences and platform competition. These developments occurred within the established regulatory distinctions that separate prediction markets from state-licensed sportsbooks and reflected differences in marketing approach and user eligibility rules.