Sports contracts accounted for 98.2% of Polymarket US turnover over a 30-day window, according to DeFi Rate. The figure points to an extreme concentration of activity in a single market category on the prediction platform.
Sports Dominated Polymarket US Turnover in the Reported 30-Day Window
What the 98.2% turnover figure measures
The 98.2% share reported by DeFi Rate refers to contract trading turnover on Polymarket's US-accessible market segment across a continuous 30-day period. Turnover is a volume metric, not a count of users, revenue, or total global Polymarket activity. For related coverage, see Top Crypto Prop Trading Firms in 2026.
The remaining share outside sports
The remaining 1.8% of turnover was distributed across all other contract categories combined, including politics, finance, and current events. Turnover concentration at this level means nearly every dollar of trading activity cycled through sports outcomes during the snapshot window. Research from Galaxy found that 69% of Polymarket retail traders lost money, adding context to who is supplying liquidity on the losing side of these markets. For related coverage, see Best Crypto Casinos for Halloween 2026: Live Events, Spooky Slots, and Real Bonuses.
What Sports-Led Activity Could Mean for Prediction Markets
Liquidity and attention may follow active sports calendars
A 98.2% sports share suggests that Polymarket US liquidity closely tracks active sports calendars. When major leagues and tournaments are in season, contract volume concentrates where outcomes are frequent and near-term, giving traders faster resolution cycles than political or macro markets. That dynamic can inflate turnover figures during sports-heavy months.
Concentration does not establish long-term demand patterns
A 30-day snapshot does not establish a long-term demand pattern. A window containing a major tournament, playoffs, or championship series will look different from a quieter sports month, and the figure covers Polymarket US specifically; global activity may carry a different category mix. Regulatory pressure on sports betting prediction markets has already prompted legal action in states like Missouri, which could shape how US-specific turnover evolves.
Polymarket has also been expanding its non-sports contract types. The platform updated its five-minute Bitcoin contract pricing to use 60-second averages, signaling active product development beyond sports outcomes. Whether that diversification shifts the turnover mix in a subsequent 30-day snapshot is the key figure to watch from DeFi Rate, the source behind the original measurement.
Disclaimer: This article is for informational purposes only and does not constitute financial or investment advice. Cryptocurrency and digital asset markets carry significant risk. Always do your own research before making decisions.