LeBron James partners with Polymarket amid NFL betting competition

The sports betting and prediction market sectors are seeing significant activity. LeBron James has announced a partnership with the prediction market platform Polymarket. The basketball star joins a growing list of high-profile athletes endorsing platforms in this space, including Lionel Messi and Giannis Antetokounmpo, who have endorsed Polymarket's competitor, Kalshi.

In the NFL gambling market, Las Vegas-based Circa Sports is leading major survivor and handicapping contests. Circa has surpassed the entry requirements for its $20 million survivor contest, reaching approximately 23,000 entries. Meanwhile, rival Splash Sports is attempting to compete with a $21 million guarantee for its Survivor World Championship, though it currently faces a gap in required entries that may lead to a multi-million-dollar overlay.