BetGRW: margins and market data
Across 552 markets observed in the last 7 days (6 sports, 12 leagues), BetGRW's median bookmaker margin was 4.66% — rank #9 of 117 tracked books (lower is better for bettors). Where at least five books priced the same market, BetGRW had the single best price 3.9% of the time.
| Market family | Median margin |
|---|---|
| Moneyline / match result | 4.61% |
| Handicaps / spreads | 4.71% |
| Totals | 4.76% |
In the last 90 days, BetGRW posted the board-leading price on 47 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 4.66% margin means that, on a typical BetGRW market, prices pay out 4.66% less than a fair-value book would. Omenizer's fair prices remove this margin using sharp reference sources — the methodology explains how.
See where BetGRW beats fair value — free account