How we rate bookmakers
Every bookmaker is scored out of 10 in six categories. The overall rating is a weighted average.
| Category | Weight | What we look at |
|---|---|---|
| odds | 25% | Margins on popular markets (especially football 1X2, totals and US spreads) compared with rivals in the same country. Lower margins score higher. |
| markets | 20% | Depth of sports, leagues and bet types, including local leagues, live betting, bet builders and specials. |
| bonuses | 15% | Welcome offer value after wagering requirements, minimum odds and expiry, plus ongoing promotions such as acca boosts. |
| app | 15% | Speed, stability and ease of use of the apps and mobile site, including data-light options for low-bandwidth users. |
| payments | 15% | Local payment methods, deposit and withdrawal speed, fees and minimums. |
| support | 10% | Licensing, safer gambling tools, transparency of terms and customer support quality. |
Licensing first
We only rank bookmakers in countries where they hold a licence. Unlicensed offshore operators are excluded, however popular they are, because players have little protection if something goes wrong.
Odds and margins
A bookmaker's margin (overround) is the edge built into its prices. We calculate it from the implied probabilities of every outcome in a market. Read more in bookmaker margins explained or try the margin calculator.
Keeping data current
Each review shows when it was last reviewed. Bonuses and features change often, so we re-check offers regularly and always recommend confirming terms on the operator's site.
Odds data
When a live odds feed is connected, odds pages refresh roughly every 15 minutes. Without one, pages show clearly labelled sample odds generated for demonstration.