No-Vig Odds
No-vig odds — also called fair odds — are a two-sided price with the sportsbook's built-in margin mathematically removed, so the two sides' probabilities add up to exactly 100%.
Worked example
Take -110/-110: each side implies 52.38%, summing to 104.76%. Divide each side by that total — the multiplicative method — and you get exactly 50%/50%, which converts back to +100/+100: the no-vig odds underneath.
In short
No-vig odds — also called fair odds — are a two-sided price with the sportsbook's built-in margin mathematically removed, so the two sides' probabilities add up to exactly 100%. Take -110/-110: each side implies 52.38%, summing to 104.76%. Divide each side by that total — the multiplicative method — and you get exactly 50%/50%, which converts back to +100/+100: the no-vig odds underneath.
No-Vig Odds — FAQ
What are no-vig odds?
No-vig odds are a two-sided price with the sportsbook's margin removed, so the two sides' probabilities add up to exactly 100% instead of more. They're also called fair odds or a de-vigged price.
How do you calculate no-vig odds?
Convert both prices to implied probability, then divide each by the pair's total (the multiplicative method) or split the excess evenly between them (additive), and convert the result back to American odds.
Is a no-vig price the same as a fair price?
"Fair odds", "no-vig odds" and "de-vigged price" all describe the same number: a two-sided market with the margin stripped out.
What's the difference between no-vig and Novig?
No-vig is the arithmetic on this page. Novig is a peer-to-peer betting exchange BeatVig prices — the two names collide but are not the same thing.