Guide · 5 min read
Tennis retirement rules: how bookmakers settle your bet
When a tennis player retires mid-match, one bookmaker may void your bet while another settles it as a loss. On a single bet that is annoying; on a tennis sure bet it can wipe out the margin of twenty arbs. This guide explains the three rule types and how to check them.
Updated 22 October 2026
Contents
The three rule types
A retirement happens when a player starts a match but does not finish it, usually because of an injury. Under the tournament rules the opponent goes through. How a match-winner bet is settled, though, is up to each bookmaker. There are essentially three types:
| Rule type | Match-winner bet when a player retires |
|---|---|
| Match must be completed | Void (odds 1.00, stake back), whenever the retirement happens. |
| Set rule | Stands if at least one set (two at some bookmakers) has been completed: the player who advances is the winner. Before that: void. |
| Player who advances | As soon as one ball has been played, the player who goes through to the next round is the winner. |
On top of that there are variations: special rules for certain tournaments, exceptions for in-play bets, or promotions such as "stake back if your player retires" that only apply to pre-match singles. Bookmakers also change these rules from time to time. That is why we deliberately do not list a rule per bookmaker here: what counts is always the current wording in your bookmaker's betting rules.
How a retirement breaks a sure bet
A sure bet only works if both bets are settled under the same rules. In tennis that cannot be taken for granted.
Bookmaker X offers Player A at 2.10 and uses the "player who advances" rule. Bookmaker Y offers Player B at 2.00 and requires a completed match. Sum of reciprocals: 1/2.10 + 1/2.00 ≈ 0.976, a sure bet with a margin of about 2.4%. You stake €480 on A at X and €504 on B at Y, €984 in total.
| Outcome | A at X (€480) | B at Y (€504) | Result |
|---|---|---|---|
| Match completed, A wins | +€528 | −€504 | +€24 |
| Match completed, B wins | −€480 | +€504 | +€24 |
| A retires in the 2nd set | −€480 (B advances) | €0 (void) | −€480 |
| B retires in the 2nd set | +€528 (A advances) | €0 (void) | +€528 |
A single retirement on the wrong side costs as much as the margin from twenty sure bets of the same size. The fact that the other direction brings a large win does not make it safer: at that moment you no longer have a sure bet, just an open bet.
Retirements are not rare in professional tennis, especially at smaller tournaments, in heat and late in the season. If you place tennis sure bets regularly, you will run into one sooner or later. Mismatched settlement rules are one of the main reasons an unusually high margin deserves a second look; see what is a good arbitrage percentage.
Set betting, handicaps and totals
Other markets have their own rules, and those differ too:
- Set betting (for example "first set winner"): many bookmakers settle sets that have been completed and void the open ones. Some void all set bets on the match instead.
- Handicaps and totals (games or sets): usually void, unless the result was already decided when the player retired. "Over 20.5 games" has already won at 6–4, 6–5, whatever happens next.
- Next game or next point (in-play): void if not played to completion.
Sure bets are least exposed when both bookmakers demonstrably apply the same rule to exactly that market. Two bookmakers that both require a completed match void both bets on a retirement, and you get both stakes back.
Walkovers
A walkover means a player does not take to the court at all. No ball has been played, so practically every bookmaker voids bets on the match. For a sure bet a walkover is therefore usually harmless: both stakes come back.
A special case is a change of player before the start, for example when a lucky loser replaces an injured player. Most bookmakers void bets then as well, because the pairing has changed. Check it in the rules anyway.
How to check the rule
- Open the betting rules. Usually in the help section or at the end of the terms and conditions, under "sports betting rules" or "sport-specific rules".
- Find the tennis section. Search there for "retirement", "abandonment", "disqualification" or "walkover".
- Note the rule per market. Match winner, set betting, handicaps and totals separately, with the date you checked.
- Compare before every tennis sure bet. If the two bookmakers' rules for the market differ, skip the sure bet or take the risk knowingly.
- Check again regularly. Rules change. A look every few months is enough, and a dated note saves you searching again.
Similar traps exist in football (extra time, abandonment) and basketball (overtime). The general checks before any arb, from settlement rules to stake limits, are in bookmaker limits. If one of the bookmakers passes Austria's betting fee on, include it as well; see the Austrian betting tax.
Frequently asked questions
Is a tennis bet always void when a player retires?
No. Some bookmakers always void the match-winner bet, others only if no set has been completed, and others settle in favour of the player who advances as soon as one ball has been played. Your bookmaker's betting rules are what counts.
Which rule applies to set betting?
Many bookmakers settle sets that have been completed and void the open ones. Some void all set bets on the match instead. Here too, each bookmaker's betting rules decide.
How do I check a bookmaker's retirement rule?
Open the sports betting rules, usually in the help section or the terms and conditions, and search the tennis section for retirement, abandonment or walkover. Note the rule per market with the date and compare it with the second bookmaker's rule before every tennis sure bet.
What happens with a walkover?
With a walkover a player does not take to the court at all. Because no ball has been played, practically every bookmaker voids bets on the match and you get your stake back.
Sources
- ITF: Rules of Tennis
- Bookmakers' sports betting rules, "Tennis" section (retirement, abandonment, walkover), current version in each case
As of October 2026. Deliberately without a rule per bookmaker, because betting rules change. The example is an illustration with the stated odds.
Not betting, legal or tax advice. 18+. Betting involves risk and no profit is guaranteed: odds change, bets get voided and accounts get limited. Only bet money you can afford to lose. Our responsible gambling page lists free help, and the disclaimer applies.