Polymarket has inked a fresh deal to get access to high-speed data and streaming video content for more than 20 sporting associations, a sign that leagues are warming to prediction markets even as their legal status in the U.S. remains contested.

An expanded partnership with Nasdaq-listed data provider Sportradar will bring official feeds to a broader range of Polymarket’s bets, reducing lags in the delivery of real-time information about sports. That could appeal to both casual users of its app and the high-frequency trading firms moving into prediction markets.