Retirements in tennis

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21. Tennis
If a player or pairing retires or is disqualified in any match, the player or pairing progressing to the next round (or winning the tournament in the case of a final) will be deemed the winner. However if less than one set has been completed at the time of the retirement or disqualification then all bets relating to that individual match will be void.
All bets relating to the number of occurrences of certain events within a tournament will be void if the tournament is reduced in length, postponed or cancelled, except for those on markets which have been unconditionally determined.
All bets will stand regardless of changes to scheduled venues, including any changes to a different type of surface.
If the scheduled duration of a match is reduced or increased in the number of games/sets required to win, all bets will be void except for those on markets which have been unconditionally determined. Please note that this does not apply to ‘Match Odds’ or ‘Set Winner’ markets on Davis Cup matches or ‘dead rubber’ matches that have been shortened from five sets to three sets after the market has been loaded, provided that the match has been shortened in accordance with the competition’s rules.
Where markets are offered on individual games or sets within a match, a retirement or disqualification during a game or set will render bets on that game or set market and all individual game or set markets void except those on markets which have been unconditionally determined.