betfair-sb review: who runs it, and are the odds any good?
7.14%
median margin
5.1%
best price on board
231
markets · 7 days
Across 231 markets observed in the last 7 days (3 sports, 15 leagues), betfair-sb's median bookmaker margin was 7.14% (lower is better for bettors). Where at least five books priced the same market, betfair-sb had the single best price 5.1% of the time.
Is betfair-sb trustworthy?
2/4checks
verified
verified
?
Operating company
Not established — Omenizer has not yet verified who operates this book. That is a gap in our research, not a finding about the book.
?
Licence
Not established.
✓
Fees
No commission — cost is in the prices, about $6.66 per $100 staked all in
✓
What Omenizer has measured
231 markets across 3 sports and 15 leagues in the last 7 days, priced against the rest of the market.
How betfair-sb's prices compare
| Market family | Median margin |
|---|
betfair-sb margin by sport
| Sport | Median margin | Best price | Markets (7d) |
|---|---|---|---|
| Soccer | 7.93% | 4.2% | 144 |
| Tennis | 5.65% | 1.9% | 54 |
In the last 90 days, betfair-sb posted the board-leading price on 12 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 7.14% margin means that, on a typical betfair-sb market, prices pay out 7.14% less than a fair-value book would. Omenizer's fair prices remove this margin using sharp reference sources — the methodology explains how.
FAQ
- Is betfair-sb legit?
- Omenizer has not yet verified which company operates betfair-sb or what licence it holds — a gap in our research rather than a finding against the book. Independently of that, Omenizer has measured 231 betfair-sb markets in the last 7 days against the rest of the market, so its prices are observable rather than taken on trust. We publish the checks we can evidence and flag the ones we cannot — we do not certify bookmakers.
- Who owns betfair-sb?
- Omenizer has not yet verified the company behind betfair-sb. We record an operator only when we have read it on the operator's own site or a regulator's register, so this is an unfilled gap rather than a guess we declined to make.
- Is betfair-sb licensed?
- Not established — we have not confirmed a licence for betfair-sb.
- What is betfair-sb's betting margin?
- Measured across 231 markets in the last 7 days, betfair-sb's median margin (overround) was 7.14%. Lower is better for bettors.
- How often does betfair-sb have the best odds?
- Where at least five tracked books priced the same market, betfair-sb posted the single best price 5.1% of the time over the last 7 days.
- How is betfair-sb'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.