16. Tennis rules
16.1 If the first set of a match is not completed, all bets related to the match will be voided.
16.2 If a player fails to start a tournament or match, all bets on that player will be voided.
16.3 When there is uncertainty about the outcome of an incomplete or cancelled match, Smarkets will settle match bets according to which player or pairing goes through to the next round, or who wins the tournament overall if the match is a final.
16.4 Any cancellation, postponement or change to the length of a tournament will void all bets relating to occurrences of certain events within a tournament unless the outcome of those markets has already been determined.
16.5 Any change to the scheduled number of games or sets required to win a match, or a retirement or disqualification during a game or set, will void bets on affected game betting and set betting markets unless the outcome of those markets has already been determined.
16.6 Smarkets will not void bets due to changes in venue or changes in the playing surface.
16.7 The 36-hour postponement rule explained in rule 6.3 does not apply for tennis markets.
16.2.1 If one selection is voided, the odds of the multiple bet will be reduced to account for the voided selection.