SharpDelta
The prediction-market fair-value screener · Kalshi & Polymarket vs. the de-vigged consensus of 100+ sportsbooks · 14 games · updated Aug 5, 8:16 PM ET
Positive Sharp Delta right now
No venue is currently selling ≥2.5pts below fair value. Markets are tight right now — that's an honest reading, not a broken screener.
MLB board
| Matchup (A vs B) | Start (ET) | Books | Fair A | Kalshi A / B | Polymarket A / B | ProphetX A / B |
|---|
| Arizona Diamondbacks vs San Diego Padres | 08/05 9:40 PM | 165 | 44¢ | 45¢ / 56¢ | 44¢ / 56¢ | 44¢ / 56¢ |
| Seattle Mariners vs Detroit Tigers | 08/05 9:40 PM | 165 | 58¢ | 59¢ / 42¢ | 59¢ / 42¢ | 59¢ / 42¢ |
| Baltimore Orioles vs Los Angeles Angels | 08/06 12:35 PM | 77 | 60¢ | 61¢ / 40¢ | 60¢ / 40¢ | – / – |
| Cincinnati Reds vs Athletics | 08/06 12:40 PM | 78 | 59¢ | 60¢ / 41¢ | 60¢ / 40¢ | – / – |
| Cleveland Guardians vs New York Mets | 08/06 1:10 PM | 107 | 50¢ | 50¢ / 51¢ | 50¢ / 51¢ | – / – |
| Milwaukee Brewers vs Pittsburgh Pirates | 08/06 2:10 PM | 106 | 56¢ | 57¢ / 44¢ | 57¢ / 43¢ | – / – |
| Chicago Cubs vs Toronto Blue Jays | 08/06 2:20 PM | 99 | 48¢ | 49¢ / 52¢ | 49¢ / 51¢ | – / – |
| Seattle Mariners vs Detroit Tigers | 08/06 4:10 PM | 106 | 54¢ | 55¢ / 46¢ | 54¢ / 46¢ | – / – |
| Philadelphia Phillies vs Washington Nationals | 08/06 6:05 PM | 75 | 73¢ | 75¢ / 26¢ | 75¢ / 25¢ | – / – |
| Boston Red Sox vs Chicago White Sox | 08/06 7:10 PM | 100 | 62¢ | 63¢ / 38¢ | 62¢ / 39¢ | – / – |
| Atlanta Braves vs Miami Marlins | 08/06 7:15 PM | 102 | 59¢ | 60¢ / 41¢ | 59¢ / 41¢ | – / – |
| Kansas City Royals vs Minnesota Twins | 08/06 7:40 PM | 95 | 52¢ | 53¢ / 49¢ | 51¢ / 49¢ | – / – |
Prices are what each side costs right now, in cents per $1 contract, in matchup order (A / B). A venue's two sides usually sum above 100¢ — that's its spread, the equivalent of vig. A positive Sharp Delta is a side selling below fair value despite the spread.
WNBA board
| Matchup (A vs B) | Start (ET) | Books | Fair A | Kalshi A / B | Polymarket A / B | ProphetX A / B |
|---|
| Chicago Sky vs Los Angeles Sparks | 08/05 9:00 PM | 160 | 57¢ | 57¢ / 44¢ | 57¢ / 44¢ | 57¢ / 44¢ |
| Indiana Fever vs Las Vegas Aces | 08/06 7:00 PM | 146 | 51¢ | 52¢ / 49¢ | 51¢ / 50¢ | – / – |
Prices are what each side costs right now, in cents per $1 contract, in matchup order (A / B). A venue's two sides usually sum above 100¢ — that's its spread, the equivalent of vig. A positive Sharp Delta is a side selling below fair value despite the spread.
What is Sharp Delta? Sharp Delta = the gap between a venue's ask price (Kalshi, Polymarket) and the de-vigged consensus of 100+ sportsbooks. Positive Sharp Delta means the venue is selling below fair value. Fair value = median de-vigged win probability across every sportsbook in the feed (prediction venues excluded from the consensus). Ask = the implied probability you would pay at that venue right now. Not betting advice; prices move.
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