Polymarket Trading Volume Tops $11 Million for World Cup Opener

The 2026 World Cup, held from June 11 to July 19, became a major test of blockchain-based prediction markets, where users trade contracts tied to match results and other tournament events. The surge matters because it shows how global sports can accelerate mainstream use of crypto infrastructure while drawing closer scrutiny of cross-border betting, market integrity and compliance risks.

World Cup activity generated $20 billion in blockchain prediction-market volume, according to a new report from Chainalysis. More than 400,000 crypto wallets placed wagers during the tournament, with the U.S. and China accounting for the largest shares of volume. Digital collectibles linked to the event produced a further $24 million in trading, while wallets associated with illicit activity represented less than 1% of participants, the blockchain analytics firm said.

Prediction markets let traders wager on real-world outcomes, making the 2026 FIFA World Cup a major test of the sector’s ability to attract mainstream users. Kalshi and Polymarket now account for more than 95% of the market, cementing a duopoly in which scale, consumer reach and marketing spending increasingly determine which platform converts attention into trading activity.

After the tournament concluded in July 2026, Kalshi reported $54.338 billion in total platform trading volume, 2.6 times Polymarket’s tally. Kalshi also led in app downloads and aggregate trading value, helped by heavy advertising spending. Polymarket continued to draw more website visits, but that traffic did not translate into a volume lead, leaving Kalshi ahead on the industry’s most closely watched commercial measures.

The 2026 FIFA World Cup, hosted by the United States, Canada and Mexico, also served as a large-scale test of crypto-based prediction markets. Polymarket lets traders buy and sell contracts tied to match outcomes, with prices acting as market-implied probabilities. The tournament’s global reach, heavy betting interest and transparent wallet data made the platform a useful case study in whether crowd forecasts translated into profits — and how evenly those gains were shared.

By the tournament’s conclusion on July 19, 2026, more than $474 million had been wagered before matches on Polymarket. The contracts posted an aggregate hit rate of 62.97% and about $28.88 million in net profit. Returns were sharply concentrated, however: the 10 most profitable accounts captured more than half of total gains, while one wallet earned $8.25 million from just two matches. The figures suggest a small number of large winning positions substantially lifted the market’s average performance.

Prediction markets allow users to trade contracts tied to the outcomes of sporting, political and other events, with prices reflecting the market-implied probability of each result. Betting demand generated by the 2026 FIFA World Cup rapidly expanded Kalshi and Polymarket, bringing greater scrutiny to their liquidity, compliance and regulatory disputes across U.S. states.

Kalshi and Polymarket recorded a combined $44.8 billion in trading volume in June 2026, up 75% from May. Kalshi's monthly volume surged 87.4% to a platform record. Polymarket also returned to growth, supported by World Cup enthusiasm and U.S. market demand, though both companies continued to face regulatory challenges from several U.S. state governments.

Polymarket is a blockchain-settled prediction market where users can trade contracts on World Cup results. Bitget Wallet research shows that sports events are overtaking token trading and DeFi as a new gateway to crypto for mainstream users, reflecting the sector’s gradual expansion into the mass market.

Bitget Wallet found that about 60% of Polymarket’s World Cup bettors during the tournament in June 2026 were using a blockchain protocol for the first time. The related reports were compiled and published from June 14 to June 28. The research did not disclose total betting volume, but the share of new users underscored prediction markets’ ability to attract newcomers.

Prediction markets allow users to put money behind their forecasts for political, economic and cultural events, but they have often been viewed as venues for occasional gambling. A report by Bitget Wallet and Polymarket says retail users are increasingly trading frequently, gradually turning such platforms into everyday tools for tracking news trends and market consensus.

Polymarket's monthly trading volume rose to $25.7 billion in early 2026, while its number of active wallets also increased sharply. The figures suggest participation is no longer driven solely by major elections. The report estimates that the prediction market industry could reach $240 billion, signaling that these platforms are rapidly moving into the mainstream.