SharpDelta

The prediction-market fair-value screener · Kalshi & Polymarket vs. the de-vigged consensus of 100+ sportsbooks · 10 games · updated Jul 27, 5:16 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
Pittsburgh Pirates vs Arizona Diamondbacks	07/27 6:40 PM	143	52¢	52¢ / 49¢	53¢ / 48¢	52¢ / 49¢
Miami Marlins vs Philadelphia Phillies	07/27 6:40 PM	145	37¢	37¢ / 65¢	36¢ / 65¢	37¢ / 63¢
Detroit Tigers vs Baltimore Orioles	07/27 6:40 PM	143	52¢	53¢ / 48¢	53¢ / 48¢	53¢ / 48¢
Washington Nationals vs Toronto Blue Jays	07/27 6:45 PM	141	53¢	54¢ / 47¢	53¢ / 48¢	54¢ / 47¢
New York Mets vs Atlanta Braves	07/27 7:10 PM	141	50¢	51¢ / 50¢	51¢ / 50¢	51¢ / 50¢
Cincinnati Reds vs Cleveland Guardians	07/27 7:10 PM	143	60¢	60¢ / 41¢	59¢ / 42¢	59¢ / 41¢
Chicago White Sox vs New York Yankees	07/27 7:40 PM	145	43¢	43¢ / 58¢	43¢ / 58¢	43¢ / 57¢
St. Louis Cardinals vs Chicago Cubs	07/27 7:45 PM	141	47¢	47¢ / 54¢	48¢ / 53¢	48¢ / 53¢
Los Angeles Angels vs Houston Astros	07/27 9:38 PM	144	50¢	50¢ / 51¢	49¢ / 52¢	51¢ / 51¢
Athletics vs Boston Red Sox	07/27 9:40 PM	145	39¢	38¢ / 63¢	38¢ / 63¢	38¢ / 62¢

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.