SharpDelta

The prediction-market fair-value screener · Kalshi & Polymarket vs. the de-vigged consensus of 100+ sportsbooks · 19 games · updated Sep 8, 7:16 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
Kansas City Royals vs Arizona Diamondbacks	09/08 7:40 PM	176	50¢	51¢ / 50¢	51¢ / 50¢	51¢ / 49¢
Milwaukee Brewers vs Chicago Cubs	09/08 7:40 PM	176	65¢	66¢ / 35¢	65¢ / 35¢	65¢ / 36¢
Chicago White Sox vs Pittsburgh Pirates	09/08 7:40 PM	176	56¢	57¢ / 44¢	57¢ / 43¢	57¢ / 44¢
Seattle Mariners vs Texas Rangers	09/08 9:40 PM	172	54¢	55¢ / 46¢	54¢ / 46¢	53¢ / 47¢
Athletics vs Toronto Blue Jays	09/08 9:40 PM	175	38¢	38¢ / 63¢	37¢ / 63¢	38¢ / 62¢
San Diego Padres vs Washington Nationals	09/08 9:40 PM	176	63¢	64¢ / 38¢	63¢ / 37¢	64¢ / 37¢
San Francisco Giants vs St. Louis Cardinals	09/08 9:45 PM	175	50¢	50¢ / 50¢	50¢ / 51¢	51¢ / 50¢
Los Angeles Dodgers vs Cincinnati Reds	09/08 10:10 PM	174	73¢	74¢ / 26¢	74¢ / 26¢	74¢ / 27¢
Detroit Tigers vs Minnesota Twins	09/09 1:10 PM	96	54¢	55¢ / 46¢	54¢ / 46¢	– / –
Athletics vs Toronto Blue Jays	09/09 3:05 PM	4	37¢	36¢ / 65¢	36¢ / 65¢	– / –
San Francisco Giants vs St. Louis Cardinals	09/09 3:45 PM	4	50¢	50¢ / 50¢	49¢ / 51¢	– / –
Seattle Mariners vs Texas Rangers	09/09 4:10 PM	66	59¢	60¢ / 42¢	60¢ / 40¢	– / –
San Diego Padres vs Washington Nationals	09/09 4:10 PM	85	63¢	65¢ / 37¢	65¢ / 36¢	– / –
Baltimore Orioles vs Cleveland Guardians	09/09 6:35 PM	89	50¢	51¢ / 49¢	51¢ / 50¢	– / –
Miami Marlins vs New York Mets	09/09 6:40 PM	90	52¢	53¢ / 48¢	54¢ / 47¢	– / –
Philadelphia Phillies vs Houston Astros	09/09 6:40 PM	87	59¢	60¢ / 41¢	59¢ / 41¢	– / –
Boston Red Sox vs Los Angeles Angels	09/09 6:45 PM	90	64¢	66¢ / 35¢	66¢ / 34¢	– / –
New York Yankees vs Colorado Rockies	09/09 7:05 PM	68	66¢	69¢ / 32¢	69¢ / 32¢	– / –
Atlanta Braves vs Tampa Bay Rays	09/09 7:15 PM	66	53¢	53¢ / 48¢	52¢ / 48¢	– / –

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.