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2-Way Odds Devigger
Remove bookmaker margin to find fair odds
Enter both sides of a 2-way market to calculate devigged odds and true probabilities.
Market Analysis
Bookmaker Margin (Vig)
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Side 1 Fair Probability
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Side 2 Fair Probability
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Fair Odds (Devigged)
American Format
Side 1
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Side 2
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Understanding Vig and Devigging
What is Vig?
Vig (vigorish, juice, margin) is the bookmaker's fee built into odds. A fair coin flip should be +100 on both sides, but books typically offer -110 on both.
Why Remove the Vig?
Devigged odds show true probabilities without markup. This helps identify value bets and compare different bookmakers.
How It Works
Convert odds to implied probabilities (which sum to more than 100%), then proportionally adjust so they sum to exactly 100%.
Educational Note
This tool is for educational purposes only. OddsBlitz does not facilitate real money wagering.