SharpDelta

The prediction-market fair-value screener · Kalshi & Polymarket vs. the de-vigged consensus of 100+ sportsbooks · 3 games · updated Jul 23, 5:15 PM ET

Positive Sharp Delta right now

Team	Vs	Sport	Start (ET)	Venue	Ask	Fair	Sharp Δ	Books
St. Louis Cardinals	Arizona Diamondbacks	MLB	07/23 5:15 PM	Kalshi	48¢	53¢	+4.9	124

MLB board

Matchup (A vs B)	Start (ET)	Books	Fair A	Kalshi A / B	Polymarket A / B	ProphetX A / B
St. Louis Cardinals vs Arizona Diamondbacks	07/23 5:15 PM	124	53¢	48¢ / 54¢	53¢ / 48¢	53¢ / 47¢
Detroit Tigers vs Kansas City Royals	07/23 6:40 PM	135	67¢	32¢ / 69¢	68¢ / 33¢	68¢ / 33¢
Milwaukee Brewers vs Colorado Rockies	07/24 4:10 PM	63	66¢	32¢ / 69¢	69¢ / 32¢	– / –

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.