Matchbook: margins and market data
Across 897 markets observed in the last 7 days (6 sports, 16 leagues), Matchbook's median bookmaker margin was 2.01% — rank #1 of 99 tracked books (lower is better for bettors). Where at least five books priced the same market, Matchbook had the single best price 28.3% of the time.
| Market family | Median margin |
|---|---|
| Moneyline / match result | 2.63% |
| Handicaps / spreads | -4.55% |
| Totals | 2.39% |
The margin is the bookmaker's built-in fee: the amount by which its implied probabilities exceed 100%. A 2.01% margin means that, on a typical Matchbook market, prices pay out 2.01% less than a fair-value book would. Omenizer's fair prices remove this margin using sharp reference sources — the methodology explains how.
See where Matchbook beats fair value — free account