grosvenor: margins and market data
Across 238 markets observed in the last 7 days (3 sports, 14 leagues), grosvenor's median bookmaker margin was 7.79% — rank #103 of 142 tracked books (lower is better for bettors). Where at least five books priced the same market, grosvenor had the single best price 16.0% of the time.
| Market family | Median margin |
|---|---|
| Totals | 7.94% |
grosvenor margin by sport
| Sport | Median margin | Best price | Markets (7d) |
|---|---|---|---|
| Soccer | 8.31% | 10.6% | 136 |
| Fighting | 8.35% | 21.7% | 54 |
In the last 90 days, grosvenor posted the board-leading price on 11 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 7.79% margin means that, on a typical grosvenor market, prices pay out 7.79% less than a fair-value book would. Omenizer's fair prices remove this margin using sharp reference sources — the methodology explains how.
FAQ
- What is grosvenor's betting margin?
- Measured across 238 markets in the last 7 days, grosvenor's median margin (overround) was 7.79% — rank #103 of 142 bookmakers Omenizer tracks. Lower is better for bettors.
- How often does grosvenor have the best odds?
- Where at least five tracked books priced the same market, grosvenor posted the single best price 16.0% of the time over the last 7 days.
- How is grosvenor's margin measured?
- Omenizer records every price on every tracked market, converts them to implied probabilities, and sums each market's sides; the amount over 100% is the bookmaker's margin. The figure here is the median across all of the book's observed markets — measured, not quoted from marketing material.