circa_sports: margins and market data
Across 516 markets observed in the last 7 days (6 sports, 7 leagues), circa_sports's median bookmaker margin was 3.50% — rank #6 of 117 tracked books (lower is better for bettors). Where at least five books priced the same market, circa_sports had the single best price 6.8% of the time.
| Market family | Median margin |
|---|---|
| Moneyline / match result | 3.46% |
| Handicaps / spreads | 4.14% |
| Totals | 4.76% |
The margin is the bookmaker's built-in fee: the amount by which its implied probabilities exceed 100%. A 3.50% margin means that, on a typical circa_sports market, prices pay out 3.50% less than a fair-value book would. Omenizer's fair prices remove this margin using sharp reference sources — the methodology explains how.
See where circa_sports beats fair value — free account