Bets will be settled based on the official result of the relevant governing body immediately after the fight, regardless of any subsequent disqualification or amendment to the result (except if an amendment is announced within 24 hours of the initial settlement of the relevant market in order to correct an error in tallying the points or in order to correct an error in reporting the result).
If the scheduled venue is changed after the market has been loaded, to a venue in a different country, all bets will be void. For all other changes to the scheduled venue, bets will stand.
If a boxer retires before the start of a round, fails to answer the bell, or is disqualified for any reason between rounds, the fight will be deemed to have finished at the end of the previous round.
If the scheduled duration (for example, number of rounds) of a fight changes after the market has been loaded, bets on that fight will stand except for bets involving an event to occur before, during or after specified rounds or round groupings (which will be void). For example, in such circumstances, bets on Boxer A To Win In Round 11 would be void.
If a fight is declared a 'no contest' or 'no decision', bets will be void unless the market has already been unconditionally determined.
If a fight is not completed within three days of the scheduled start date, all bets will be void.
If a boxer is withdrawn or substituted before the fight starts, all bets will be void.
If a boxer is disqualified, they will be deemed a loser.
The Exchange General Rules and Market Information will apply in respect of any category of bets or markets not referred to in the Specific Sports Rules. If there is any inconsistency between the Specific Sports Rules and the Exchange General Rules, the Specific Sports Rules shall prevail. If there is any inconsistency between the Market Information and either the Exchange General Rules or the Specific Sports Rules, the Market Information shall prevail.
See here for the Exchange General Rules.