Tennis Betting Rules no show, walkover, tiebreak or retiring of a player
While we recommend that you check the betting rules of the sportsbook you are using individually, most sportsbooks handle the following situations more or less in the same way. These are the rules applying at our preferred online sports betting site, Bet365.
Case #1
When a player cannot start his match (no show, which is called a walkover for the other player), all bets for that match will be canceled.
Case #2
If a player retires during the match, all open bets will be canceled.
Case #3
A tiebreak counts as one game. When a set is decided by a single tiebreak (champions tiebreak), it is counted as a set.