No-Vig / Hold Calculator
Sportsbooks bake a margin (the vig or hold) into both sides of a market. Enter both sides' odds to see how much the book is charging and what the true, vig-free odds are.
Enter your numbers above to see the result.
Worked example
A -110 / -110 market has a 4.55% hold — the fair odds on both sides are actually +100 (a true 50/50). The 4.55% is the book's built-in edge.
FAQ
What is the vig (or hold)?
It's the sportsbook's commission, built into the odds on both sides so the implied probabilities add up to more than 100%.
Why remove the vig?
Vig-free 'fair' odds are the best estimate of true probability. Comparing them to what another book offers is how you find +EV bets.
We run this math on every game.
Every pick tiered, unit-sized, posted before games — and graded publicly when they end. Wins and losses, on the record, forever.
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