Odds & pricing
Bookmaker margin & no-vig odds
Enter the odds for every outcome of a market. Get the overround, the built-in margin, and the fair probabilities once the vig is removed.
Overround
—
Bookmaker margin
—
| Outcome | Your odds | Implied % | Fair % | Fair odds |
|---|
No-vig probabilities are derived by scaling the implied probabilities so they sum to 100% (the multiplicative method). It assumes the margin is spread proportionally across outcomes — real books often load the favourite or the longshot more heavily, so treat fair odds as an estimate.