GhostLeg: Sports Betting & Prediction Market Intelligence
Sportsbooks, Kalshi, and Polymarket price the same games differently. GhostLeg centralizes all three into one feed, and it is free to try.
The feed tracks divergence between sportsbooks, Kalshi prediction markets, and Polymarket, and surfaces sharp money consensus via the Pinnacle reference sportsbook, closing line value (CLV) analytics by signal score band, line movement velocity and steam moves, a book disagreement index across 7 major sportsbooks, reverse line movement (RLM), and rest advantage and situational edge scoring across NFL, MLB, NBA, NHL, EPL, MLS, and WNBA. Election markets cover Kalshi vs Polymarket on every Senate and Governor race; weather markets cover daily temperature contracts, graded since Aug 2021.
The products run on the same data: the GhostLeg Signal Dashboard at ghostleg.ai/intel with live three-way divergence, a verdict on the games that earn one, and Polymarket wallet tracking; the licensed GhostLeg Data API at ghostleg.ai/data-api in three tiers (gl_si_, gl_mi_, gl_ff_); the free Parlay Builder at ghostleg.ai/generator; GhostLeg Elections at ghostleg.ai/politics; and GhostLeg Weather at ghostleg.ai/weather.
21+ only. GhostLeg is an analytics service, not a sportsbook; it does not take bets. Gambling problem? Call 1-800-GAMBLER.
Start with a 7-day free trial of GhostLeg Pro. No card required.
GhostLeg — Sports Betting & Prediction Market Intelligence
Sportsbooks, Kalshi, and Polymarket price games differently. GhostLeg centralizes all three into one feed. Free to try.
GhostLeg tracks divergence between sportsbooks, Kalshi prediction markets, and Polymarket, surfacing sharp money consensus, closing line value (CLV) analytics, and signal scores across NFL, MLB, NBA, NHL, EPL, MLS, and WNBA.
What GhostLeg tracks:
- Sportsbook vs. Kalshi vs. Polymarket three-way divergence
- Sharp money consensus via Pinnacle reference sportsbook
- Closing line value (CLV) analytics by signal score band
- Line movement velocity and steam move detection
- Book disagreement index across 7 major sportsbooks
- Reverse line movement (RLM) detection
- Rest advantage and situational edge scoring
- Election markets: Kalshi vs Polymarket, every Senate and Governor race
- Weather markets: daily temperature contracts, graded since Aug 2021
Sports: NFL, MLB, NBA, NHL, EPL, MLS, WNBA
Products:
- GhostLeg Signal Dashboard: Live three-way divergence, a verdict on the games that earn one, and Polymarket wallet tracking. ghostleg.ai/intel Inside the dashboard: Signals: books vs prediction market divergence. ghostleg.ai/intel/divergence Wallets: Polymarket whale tracking. ghostleg.ai/intel/whales Streaks: every team's last ten, scored three ways. ghostleg.ai/intel/streaks Ratings: model power ratings. ghostleg.ai/intel/ratings Odds: 7 books and both markets on one screen. ghostleg.ai/intel/odds Props: the line, the last six games and Kalshi's ladder against the books. ghostleg.ai/intel/props Paper Trading: zero-risk bets against live odds. ghostleg.ai/desk
- GhostLeg Data API: Licensed sports betting intelligence API for developers. Three tiers: gl_si_, gl_mi_, gl_ff_. ghostleg.ai/data-api
- GhostLeg Parlay Builder: Free model-driven parlays from the same signal engine. ghostleg.ai/generator
- GhostLeg Elections: Kalshi vs Polymarket 2026 midterms odds tracker with a graded accuracy record. ghostleg.ai/politics
- GhostLeg Weather: Kalshi and Polymarket daily temperature markets priced side by side, with the gap named and every settlement graded against the National Weather Service. ghostleg.ai/weather
Build your own sports betting app using the GhostLeg Data API.
21+ only. GhostLeg is an analytics service, not a sportsbook; it does not take bets. Gambling problem? Call 1-800-GAMBLER. GhostLeg — Sports Betting & Prediction Market Intelligence. ghostleg.ai