SharpDelta

The prediction-market fair-value screener · Kalshi & Polymarket vs. the de-vigged consensus of 100+ sportsbooks · 15 games · updated Sep 8, 10:15 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
Detroit Tigers vs Minnesota Twins	09/09 1:10 PM	115	54¢	55¢ / 46¢	54¢ / 46¢	55¢ / 46¢
Athletics vs Toronto Blue Jays	09/09 3:05 PM	4	36¢	35¢ / 66¢	34¢ / 66¢	– / –
San Francisco Giants vs St. Louis Cardinals	09/09 3:45 PM	69	47¢	47¢ / 53¢	48¢ / 52¢	– / –
Seattle Mariners vs Texas Rangers	09/09 4:10 PM	121	59¢	60¢ / 41¢	59¢ / 41¢	– / –
San Diego Padres vs Washington Nationals	09/09 4:10 PM	107	63¢	64¢ / 37¢	65¢ / 36¢	– / –
Baltimore Orioles vs Cleveland Guardians	09/09 6:35 PM	114	51¢	51¢ / 50¢	51¢ / 50¢	52¢ / 50¢
Miami Marlins vs New York Mets	09/09 6:40 PM	151	52¢	54¢ / 47¢	53¢ / 48¢	54¢ / 47¢
Philadelphia Phillies vs Houston Astros	09/09 6:40 PM	151	59¢	59¢ / 41¢	59¢ / 41¢	60¢ / 41¢
Boston Red Sox vs Los Angeles Angels	09/09 6:45 PM	151	65¢	66¢ / 35¢	66¢ / 34¢	67¢ / 34¢
New York Yankees vs Colorado Rockies	09/09 7:05 PM	150	68¢	69¢ / 32¢	68¢ / 32¢	70¢ / 32¢
Atlanta Braves vs Tampa Bay Rays	09/09 7:15 PM	96	53¢	53¢ / 48¢	52¢ / 48¢	54¢ / 48¢
Kansas City Royals vs Arizona Diamondbacks	09/09 7:40 PM	4	49¢	49¢ / 52¢	48¢ / 52¢	– / –
Chicago White Sox vs Pittsburgh Pirates	09/09 7:40 PM	81	59¢	59¢ / 42¢	59¢ / 42¢	61¢ / 42¢
Milwaukee Brewers vs Chicago Cubs	09/09 7:40 PM	113	55¢	55¢ / 46¢	55¢ / 45¢	57¢ / 45¢
Los Angeles Dodgers vs Cincinnati Reds	09/09 10:10 PM	107	71¢	72¢ / 29¢	72¢ / 28¢	– / –

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.