Kalshi and Polymarket NBA Odds vs the Books

Kalshi NBA contracts, Polymarket NBA contracts and sportsbook lines on the same game, side by side and live. For every NBA game on the night's slate the board reads each venue as an implied probability and shows the gap between them, so you can see where Kalshi odds and Polymarket prices disagree with the books.

Switch the market segment between moneyline, spread and total, and choose the league with the sport pill. Alongside the three-way gap the page tracks sharp money consensus via the Pinnacle reference sportsbook, closing line value (CLV) analytics by signal score band, line velocity and steam moves, reverse line movement (RLM) flags, and the book disagreement index across major sportsbooks.

On a basketball game the moneyline is where the three venues meet most directly: a gap of a few points of implied probability between a book and a prediction market is a disagreement about the same game on the same night. Read that gap as a measurement, not as prediction market arbitrage; the board shows the size of the disagreement and does not tell you whether it can be traded or which side is right. Nothing on this page is a pick. The same intelligence is exposed via the GhostLeg Data API at ghostleg.ai/data-api.

Live three-way divergence intelligence for NBA Basketball: where sportsbooks, Kalshi prediction markets, and Polymarket disagree.

What this page tracks for NBA:

Same intelligence is exposed via the GhostLeg Data API. ghostleg.ai/data-api, GhostLeg: Sports Betting Signal Intelligence