NBA signs deals with Kalshi and Polymarket for prediction markets

The NBA became the third major US sports league to partner with Kalshi and Polymarket, naming them "Preferred Prediction Market Exchanges." The multi-year deals require the operators to share betting data with the league and investigators, and give them access to official NBA data through Sportradar.

• NBA signed a memorandum with the CFTC on a regulatory framework for prediction markets
• Kalshi and Polymarket will get official NBA data feeds via Sportradar
• The league can limit high-risk markets, including under-prop bets under 12 minutes
• NBA employees, players and coaches are barred from betting on league games