If there is a presentation ceremony, bets will be settled in accordance with the official result of the relevant governing body at the time of the ceremony.
If there is no presentation ceremony, bets will be settled in accordance with the official result of the relevant governing body immediately after the event.
The above applies 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 reporting the result).
If the scheduled venue is changed after the market has been loaded, all bets will be void.
If a race is abandoned and no official result is declared, all bets on that race will be void except for markets that have been unconditionally determined.
In speedway, bets will be void if all scheduled heats or races of a meeting or match are not completed, except for markets that have been unconditionally determined.
The driver/rider who finishes ahead or completes the most number of laps will be deemed to be the winner.
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.