SharpDelta
The prediction-market fair-value screener · Kalshi & Polymarket vs. the de-vigged consensus of 100+ sportsbooks · 19 games · updated Jul 17, 8:16 AM ET
Positive Sharp Delta right now
| Team | Vs | Sport | Start (ET) | Venue | Ask | Fair | Sharp Δ | Books |
|---|
| Tampa Bay Rays | Boston Red Sox | MLB | 07/17 7:10 PM | Kalshi | 47¢ | 50¢ | +2.9 | 73 |
| Tampa Bay Rays | Boston Red Sox | MLB | 07/17 7:10 PM | Polymarket | 47¢ | 50¢ | +2.9 | 73 |
| Toronto Tempo | Atlanta Dream | WNBA | 07/17 7:30 PM | Polymarket | 25¢ | 28¢ | +2.6 | 142 |
| Toronto Tempo | Atlanta Dream | WNBA | 07/17 7:30 PM | ProphetX | 25¢ | 28¢ | +2.6 | 142 |
MLB board
| Matchup (A vs B) | Start (ET) | Books | Fair A | Kalshi A / B | Polymarket A / B | ProphetX A / B |
|---|
| Boston Red Sox vs Tampa Bay Rays | 07/17 1:35 PM | 133 | 53¢ | – / – | 55¢ / 46¢ | 53¢ / 47¢ |
| New York Yankees vs Los Angeles Dodgers | 07/17 7:05 PM | 141 | 49¢ | 50¢ / 51¢ | 51¢ / 50¢ | 50¢ / 51¢ |
| Boston Red Sox vs Tampa Bay Rays | 07/17 7:10 PM | 73 | 50¢ | 54¢ / 47¢ | 54¢ / 47¢ | – / – |
| Cleveland Guardians vs Pittsburgh Pirates | 07/17 7:10 PM | 142 | 54¢ | 55¢ / 47¢ | 54¢ / 47¢ | 55¢ / 46¢ |
| Toronto Blue Jays vs Chicago White Sox | 07/17 7:15 PM | 142 | 55¢ | 56¢ / 45¢ | 56¢ / 45¢ | 55¢ / 45¢ |
| Atlanta Braves vs Texas Rangers | 07/17 7:15 PM | 140 | 65¢ | 66¢ / 36¢ | 66¢ / 35¢ | 66¢ / 35¢ |
| Milwaukee Brewers vs Miami Marlins | 07/17 7:40 PM | 140 | 58¢ | 59¢ / 43¢ | 59¢ / 42¢ | 59¢ / 42¢ |
| Chicago Cubs vs Minnesota Twins | 07/17 8:05 PM | 138 | 56¢ | 57¢ / 44¢ | 57¢ / 44¢ | 57¢ / 44¢ |
| Kansas City Royals vs San Diego Padres | 07/17 8:10 PM | 141 | 49¢ | 49¢ / 52¢ | 50¢ / 51¢ | 49¢ / 52¢ |
| Houston Astros vs Baltimore Orioles | 07/17 8:10 PM | 140 | 51¢ | 52¢ / 49¢ | 52¢ / 49¢ | 51¢ / 50¢ |
| Colorado Rockies vs Cincinnati Reds | 07/17 8:40 PM | 138 | 51¢ | 52¢ / 49¢ | 52¢ / 49¢ | 52¢ / 49¢ |
| Los Angeles Angels vs Detroit Tigers | 07/17 9:38 PM | 140 | 50¢ | 50¢ / 51¢ | 50¢ / 51¢ | 50¢ / 51¢ |
| Athletics vs Washington Nationals | 07/17 9:40 PM | 141 | 50¢ | 50¢ / 51¢ | 49¢ / 52¢ | 50¢ / 51¢ |
| Arizona Diamondbacks vs St. Louis Cardinals | 07/17 9:40 PM | 130 | 50¢ | 50¢ / 52¢ | 49¢ / 52¢ | 51¢ / 51¢ |
| Seattle Mariners vs San Francisco Giants | 07/17 10:10 PM | 139 | 59¢ | 60¢ / 41¢ | 60¢ / 41¢ | 59¢ / 41¢ |
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.
WNBA board
| Matchup (A vs B) | Start (ET) | Books | Fair A | Kalshi A / B | Polymarket A / B | ProphetX A / B |
|---|
| Indiana Fever vs Seattle Storm | 07/17 7:30 PM | 142 | 75¢ | 78¢ / 23¢ | 76¢ / 25¢ | 77¢ / 25¢ |
| Chicago Sky vs Los Angeles Sparks | 07/17 7:30 PM | 143 | 52¢ | 52¢ / 49¢ | 53¢ / 48¢ | 53¢ / 48¢ |
| Toronto Tempo vs Atlanta Dream | 07/17 7:30 PM | 142 | 28¢ | 26¢ / 75¢ | 25¢ / 76¢ | 25¢ / 76¢ |
| Phoenix Mercury vs Connecticut Sun | 07/17 10:00 PM | 142 | 64¢ | 64¢ / 37¢ | 65¢ / 36¢ | 65¢ / 36¢ |
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.
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