Vig Calculator
Calculate market hold and no-vig probabilities
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How Vig Works
The vig (or juice/hold) is the sportsbook's built-in edge. In a fair market, both sides would add up to exactly 100%. Books inflate this to guarantee profit.
Example: At -110/-110, each side implies 52.38% probability. Combined: 104.76%. The 4.76% overround is the vig.
No-vig probabilities normalize the implied odds to 100%, showing you what the "true" market probability would be without the house edge.
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