betmania: margins and market data
Across 500 markets observed in the last 7 days (5 sports, 12 leagues), betmania's median bookmaker margin was 4.75% — rank #15 of 130 tracked books (lower is better for bettors). Where at least five books priced the same market, betmania had the single best price 4.6% of the time.
| Market family | Median margin |
|---|---|
| Moneyline / match result | 4.09% |
| Handicaps / spreads | 4.76% |
| Totals | 4.76% |
betmania margin by sport
| Sport | Median margin | Best price | Markets (7d) |
|---|---|---|---|
| Baseball | 3.28% | 4.3% | 170 |
| Soccer | 4.76% | 6.5% | 135 |
| Tennis | 5.08% | 0.0% | 78 |
| Basketball | 4.76% | 2.7% | 73 |
In the last 90 days, betmania posted the board-leading price on 23 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 4.75% margin means that, on a typical betmania market, prices pay out 4.75% 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 betmania's betting margin?
- Measured across 500 markets in the last 7 days, betmania's median margin (overround) was 4.75% — rank #15 of 130 bookmakers Omenizer tracks. Lower is better for bettors.
- How often does betmania have the best odds?
- Where at least five tracked books priced the same market, betmania posted the single best price 4.6% of the time over the last 7 days.
- How is betmania'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.