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No-Vig / Devig Calculator
Bookmakers bake a margin (the vig) into their odds, so the implied probabilities add up to more than 100%. Devigging strips that margin out to reveal the fair price and the book’s true probability — the starting point for spotting value.
Odds format
Bookmaker margin (vig)
4.71%
Implied total: 104.71%
| Outcome | Fair prob. | Fair decimal | Fair American |
|---|---|---|---|
| Outcome A | 50.00% | 2.000 | +100 |
| Outcome B | 50.00% | 2.000 | +100 |
This is exactly how we find value.
Our engine devigs the sharp line across 50+ books in real time, compares the fair price to every soft bookmaker, and flags the gaps. You just saw the first step — we run it on thousands of markets a day.
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