Prediction Markets Pick Their FIFA World Cup Winner as Knockout Rounds Start

Bettors on Polymarket and Kalshi are favoring France as the most likely winner of the 2026 FIFA World Cup, edging out Argentina in both regulated and decentralized prediction markets.

On Polymarket, France leads the winner market at 23% probability, with Argentina close behind at 22%. Spain sits third at 11%, England fourth at 10%, and Brazil rounds out the top five at 6%.

Kalshi, the US-regulated prediction market, mirrors the same top-two order, with France at 20% and Argentina at 16%.

France and Argentina Dominate Prediction Capital

Together, France and Argentina account for more than 45% of all winning predictions on Polymarket. That concentration points to a genuine two-horse race in the eyes of most bettors.

France enters the later rounds as the statistical favorite, while Argentina, the defending world champion, draws strong backing from those who trust Lionel Messi’s squad to repeat.

This market pattern tracks what analysts identified earlier in the tournament. BeInCrypto’s FIFA World Cup money flow analysis found that capital clustered around a small group of elite nations from the opening group stage.

Meanwhile, Kalshi partnered with ADI and PredictStreet ahead of the tournament, expanding regulated soccer betting access for US users.

Record Attendance Marks a Commercial Breakthrough

Off the pitch, the 2026 tournament has already shattered records. FIFA confirmed that total stadium attendance has surpassed 3.6 million fans, a new high for any World Cup edition.

The expanded three-nation format, hosted across the United States, Canada, and Mexico, gave the tournament a wider venue footprint that made the record possible.

The Round of 32 is set. 🔐#FIFAWorldCup pic.twitter.com/viM72iNjw3

— FIFA World Cup (@FIFAWorldCup) June 28, 2026

Fan token markets have moved in step with the excitement. World Cup fan tokens rallied sharply at the close of the group stage, reflecting demand from supporters following their national teams.

The broader World Cup betting action on Polymarket and Kalshi has also drawn mainstream attention as prediction platforms use the tournament to build name recognition.

FIFA Eyes a 64-Team Format for 2038

Beyond the current tournament, commercial momentum may drive structural changes. Sports Business Journal reports that FIFA is internally considering expanding to a 64-team format by 2038.

The existing 48-team structure, introduced at this edition, already stretched host nation logistics considerably.

For crypto traders, the timing carries a familiar signal. An analysis of the Bitcoin and FIFA four-year cycle found that prior World Cup years have historically aligned with above-average Bitcoin (BTC) returns.

Whether that pattern holds in 2026 may become clearer as the knockout rounds conclude.