SharpDelta

The prediction-market fair-value screener · Kalshi & Polymarket vs. the de-vigged consensus of 100+ sportsbooks · 13 games · updated Sep 9, 6:16 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
Baltimore Orioles vs Cleveland Guardians	09/09 6:35 PM	174	48¢	48¢ / 53¢	48¢ / 52¢	48¢ / 52¢
Miami Marlins vs New York Mets	09/09 6:40 PM	175	53¢	54¢ / 47¢	54¢ / 47¢	54¢ / 47¢
Philadelphia Phillies vs Houston Astros	09/09 6:40 PM	175	58¢	58¢ / 43¢	58¢ / 43¢	58¢ / 43¢
Boston Red Sox vs Los Angeles Angels	09/09 6:45 PM	175	65¢	67¢ / 34¢	66¢ / 34¢	66¢ / 34¢
New York Yankees vs Colorado Rockies	09/09 7:05 PM	176	68¢	69¢ / 31¢	69¢ / 31¢	69¢ / 32¢
Atlanta Braves vs Tampa Bay Rays	09/09 7:15 PM	176	53¢	54¢ / 47¢	54¢ / 46¢	54¢ / 47¢
Kansas City Royals vs Arizona Diamondbacks	09/09 7:40 PM	176	48¢	49¢ / 53¢	48¢ / 52¢	49¢ / 52¢
Chicago White Sox vs Pittsburgh Pirates	09/09 7:40 PM	174	55¢	56¢ / 46¢	55¢ / 45¢	55¢ / 46¢
Milwaukee Brewers vs Chicago Cubs	09/09 7:40 PM	173	55¢	55¢ / 46¢	55¢ / 45¢	55¢ / 45¢
Los Angeles Dodgers vs Cincinnati Reds	09/09 10:10 PM	172	71¢	73¢ / 28¢	72¢ / 28¢	72¢ / 29¢
Atlanta Braves vs Tampa Bay Rays	09/10 12:15 PM	107	52¢	53¢ / 49¢	52¢ / 48¢	– / –
Philadelphia Phillies vs Houston Astros	09/10 1:05 PM	102	61¢	64¢ / 38¢	63¢ / 37¢	– / –
Seattle Mariners vs Texas Rangers	09/10 4:10 PM	105	54¢	55¢ / 46¢	55¢ / 45¢	– / –

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.