Sunday's National Hunt fixture at Ballinrobe has been cancelled due to waterlogging.
Course officials found the track unfit for racing following a Friday morning inspection.
Cliff Noone, Irish Turf Club press officer, said: "There was no way they could have raced. It's heavily waterlogged and, with the forecast rain, there was no point in fooling around."
He added: "The course is simply not raceable - and will not be in time for Sunday."