Duel: margins and market data
Across 4,171 markets observed in the last 7 days (7 sports, 52 leagues), Duel's median bookmaker margin was 4.84% — rank #16 of 124 tracked books (lower is better for bettors). Where at least five books priced the same market, Duel had the single best price 16.9% of the time.
| Market family | Median margin |
|---|---|
| Moneyline / match result | 5.12% |
| Handicaps / spreads | 4.98% |
In the last 90 days, Duel posted the board-leading price on 16 signals flagged by Omenizer's detection engine.
The margin is the bookmaker's built-in fee: the amount by which its implied probabilities exceed 100%. A 4.84% margin means that, on a typical Duel market, prices pay out 4.84% less than a fair-value book would. Omenizer's fair prices remove this margin using sharp reference sources — the methodology explains how.
See where Duel beats fair value — free account