Polymarket withdraws Mahomes injury-return market after regulator guidance
Polymarket US withdrew a prediction market on Kansas City Chiefs quarterback Patrick Mahomes' return from injury after receiving guidance from a federal regulator. The platform said it followed the regulator's direction in pulling the contract. The NFL had said such markets should be prohibited. The withdrawal comes as prediction market operators face broader scrutiny over sports-related event contracts and their alignment with existing regulations.
Polymarket's retreat leaves Kalshi alone in testing the boundary on player-injury event contracts. That isolates Kalshi as the enforcement test case if the CFTC or state regulators challenge this product category. Rivals like Novig and DraftKings Predicts now see a clearer red line: self-certification does not shield novel sports contracts from regulatory pressure.
The CFTC's pending rules may resolve the ambiguity, but until then platforms must weigh legal exposure against first-mover advantage in sports-linked markets. Each withdrawal signals where the regulatory floor is settling, and Polymarket's OneFootball deal shows the platform shifting toward safer non-sports verticals rather than fighting the NFL and CFTC simultaneously.