1. Count the tennis

We open the site’s tennis section on a match day and count what it lists, by tour where the site groups it that way: ATP, WTA, Challenger, ITF, UTR and team events such as the Davis Cup. Counts change every day, so we always give the date.

Several sites can run on the same sportsbook platform and share one tennis list. When they do, we say so instead of counting the same list twice.

2. Test the welcome offer on tennis bets

We read the offer’s full terms and pull out everything that decides whether a tennis bet counts: minimum odds (per selection and in total), the number of selections, which sports qualify, the wagering requirement and the time limits.

Then we run typical tennis bets through those terms: a single on a favourite, a single on an underdog, a double and a treble of favourites. Where the terms don’t settle a case, for example whether a minimum applies to each selection or to the whole acca, we mark it “To confirm” until the site answers.

3. Compare prices and margins

We compare match winner prices on the same matches at two sites, read as close together as we can, and count which site priced each player higher. From the same prices we work out the bookmaker’s margin, the cost built into every bet, by tour where there are enough matches. Prices move all day, so these are dated snapshots, not rankings; our tennis betting strategy guide explains why the margin matters.

4. Check live betting and streaming

We open the live section and note how many tennis matches are in play and which markets stay open. We look for a live stream or a match tracker on in-play tennis. We check this as a logged-out visitor, so where watching needs an account or a balance, we say we couldn’t confirm it plays.

5. Read the tennis rules

We read the sportsbook rules for how the site settles a retirement, a walkover and an interrupted match, and quote the clause with the date we read it. Where a site publishes no tennis rule, we say that.

6. Payments, withdrawals and licence

In each review we add the payment methods, withdrawal limits and stated withdrawal times from the site’s terms, and the licence named on the site, checked against the regulator’s public register where there is one. For Great Britain that is the Gambling Commission, and none of the sites we compare holds its licence. Where a site takes crypto, we list the coins; bitcoin.org explains how Bitcoin payments work.

7. The verdict

Each review ends in a plain verdict instead of a score out of 10. Yes means we recommend the site for the bettors the verdict names, such as accumulator bettors. Conditional means it can suit you, but one condition in the review decides it, such as where you live. No, not for now means we don’t recommend joining yet, most often because we couldn’t find a licence for the site. A site with strong tennis can still get a no, and a verdict changes when the facts do.

Every review is written and signed by one of our two authors, Oliver Mcdonald or Barbara Peters. The facts come from the checks above, on the dates the review gives. We place no bets, make no deposits and don’t time withdrawals, so payout times are each site’s own figures.

Where we check from

Sites can show different offers, or nothing at all, depending on where a visitor is. We check from the UK wherever we can and record the country of every check. When a figure was read from somewhere else, such as Finland or Germany, the page says so, because UK prices and lists may differ.

Keeping pages current

Offers, terms and tennis lists change. Every figure on BetTennis carries its date, we re-check offers before the big tournaments, and when a site changes its terms we update the page and its date. If you spot something out of date, please tell us.