Friday's meeting at Chepstow has been abandoned due to a waterlogged track.
Clerk of the course Keith Ottesen inspected the course at 8am but further overnight rain on an already wet track has forced him to call off their fixture.
He said: "We had 12 millimetres of rain last night. We were forecast heavy showers but it just rained.
"We are waterlogged in places and there are a few areas of false ground that just will not recover in time."