Kalshi and Polymarket NFL Odds vs the Books

Kalshi NFL markets and Polymarket NFL markets against the sportsbook line for every game on the week's slate. Where a basketball board turns over nightly, the NFL board fills through the week: lines post and move across the days before kickoff, and the page shows the current gap between Kalshi odds, Polymarket prices and the books, with line velocity and steam flags on the book side.

The market segment switches between moneyline, spread and total, so the NFL spread can be read next to the moneyline the prediction markets price, and each game carries the sharp money consensus via the Pinnacle reference sportsbook beside the gap.

A week-long market means a gap can open early in the week and be gone by Sunday, or hold: the page shows the disagreement as it stands now, and the line velocity and steam flags show how the book side has moved, not why. A gap between a book and a prediction market is what gets searched as prediction market arbitrage; here it is a measurement, and whether it can be traded is not something this board claims. 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 NFL Football: where sportsbooks, Kalshi prediction markets, and Polymarket disagree.

What this page tracks for NFL:

• Sportsbook vs. Kalshi vs. Polymarket implied probability gaps
• Sharp money consensus via Pinnacle reference sportsbook
• Closing line value (CLV) analytics by signal score band
• Line velocity and steam move detection
• Reverse line movement (RLM) flags
• Book disagreement index across major sportsbooks

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