All definitions

Slam Wager glossary

Implied probability

Implied probability is the break-even rate represented by a quoted price before adjusting for the sportsbook margin or comparing it with an independent probability estimate.

Also called: break-even probability, odds-implied probability

How to interpret it

For positive American odds A, implied probability is 100 divided by A plus 100. For negative odds A, use the absolute value divided by the absolute value plus 100.

Opposing market probabilities often sum to more than 100% because prices include margin. A single quoted price is therefore not a no-vig forecast.

Limits and responsible use

  • The conversion is exact for the displayed price but does not establish a predictive edge or future result.

Treat implied probability as a way to understand price, not a recommendation. Bet only where legal and only with money reserved for entertainment.

Responsible gaming resources

Learn and use this definition in context

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How this definition fits the methodology

Use the reviewed guides and public product explanations below to see this term in context. The platform methodology explains how Slam Wager communicates uncertainty and release limits.

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