The Sunshine Coast will host a record 13 races on Wednesday with Saturday's washed out open handicap at Doomben added to the program.

The Open Handicap (1350m) was originally abandoned after heavy rain washed out the last three races at Doomben on Saturday.

It left many horses preparing for the summer carnival races in Brisbane and Sydney without a comeback or lead-up run.

At first it was thought the race could not be transferred to the Sunshine Coast because UBET and other betting agencies could not handle 13 races.

The Sunshine Coast already had 12 races on its program as part of an experiment by racing Queensland to increase betting turnover.

However, when UBET told RQ it could cater for the extra race, the decision was made to add the open handicap.

The first race on Wednesday will be run at 1.40pm (AEST) with the last at 8.45pm.

The Brisbane Race Club will run three trials at Doomben on Thursday for horses who missed a run Saturday.

The BRC will also run nine races on Saturday with a Two Metropolitan Win race added to the card.