Wash. Admin. Code § 260-48-710
(5) If, after the close of wagering, a guest racetrack's wagers cannot be successfully merged in the common pool via data circuit or manual merge, the mutuel manager will:
(b) Pay the winning wagers based on the prices established at the host racetrack.
The mutuel manager will report the failure to merge any common pool to the board of stewards or the executive secretary if the failure to merge any common pool occurs during nonlive racing. The report must be filed no later than the day after the date the common pool failed to merge.
In the event the host association has offered a wager not covered by chapter 260-48 WAC, the Association of Racing Commissioners International model rules regarding such wager will govern. Information regarding this emergency procedure will be posted throughout the class 1 racing association facility and published in its racing program.
(6) An authorized class 1 racing association when acting as a guest association will provide:
[Statutory Authority: RCW 67.16.020 and 67.16.040. WSR 08-17-049, § 260-48-710, filed 8/14/08, effective 9/14/08. Statutory Authority: RCW 67.16.020. WSR 04-21-053, § 260-48-710, filed 10/18/04, effective 11/18/04. Statutory Authority: RCW 67.16.040. WSR 99-06-026, § 260-48-710, filed 2/23/99, effective 3/26/99.]