SharpDelta

The prediction-market fair-value screener · Kalshi & Polymarket vs. the de-vigged consensus of 100+ sportsbooks · 3 games · updated Jul 15, 1:15 AM 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.

WNBA board

Matchup (A vs B)	Start (ET)	Books	Fair A	Kalshi A / B	Polymarket A / B	ProphetX A / B
Chicago Sky vs Seattle Storm	07/15 12:00 PM	132	55¢	57¢ / 44¢	56¢ / 45¢	56¢ / 45¢
Minnesota Lynx vs Los Angeles Sparks	07/15 1:00 PM	131	85¢	86¢ / 15¢	86¢ / 15¢	86¢ / 15¢
Indiana Fever vs Golden State Valkyries	07/15 8:00 PM	135	58¢	56¢ / 45¢	58¢ / 43¢	58¢ / 43¢

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.