No-vig fair odds and market consensus explained
Learn how removing bookmaker margin creates a reference probability—and why a consensus line is still not a prediction.
Why displayed probabilities exceed 100%
Each outcome's implied probability can be calculated from its price. When those probabilities are added together, the total commonly exceeds 100%. That excess is the bookmaker margin or overround, so the displayed probabilities cannot all be treated as fair probabilities at the same time.
A no-vig calculation proportionally normalizes the probabilities so they sum to 100%. It is a mathematical reference, not proof of the true chance of an outcome.
How OddsVerity forms a consensus
For each comparable head-to-head market, OddsVerity removes the overround within each available bookmaker line and then averages the normalized probability for each outcome. This reduces the influence of a single outlier and creates a transparent market reference.
- Only matching event, market and outcome data are compared.
- Each bookmaker line is normalized before averaging.
- The number of books compared is shown beside the event.
- The final operator price and settlement rules always control.
What model edge means
OddsVerity compares the best available decimal-equivalent price with the consensus fair probability. A positive percentage means that price is above the consensus reference. It does not mean the bet will win, that the price will be accepted, or that the consensus is correct.
Use model edge as a research signal alongside freshness, market rules, regional availability and platform evidence—not as a guarantee or automated instruction.