The NBA has named Kalshi and Polymarket its preferred prediction market exchanges, signed an agreement with the CFTC and widened its DraftKings deal. The league says it waited for the right rules and now wants a seat at the table. My top NBA prediction market apps are Kalshi, Polymarket US, Novig, ProphetX, Underdog, FanDuel Predicts, Gemini, OG.com, Plus500, and Crypto.com. Kalshi is my overall pick, but the right.