Plumpton 'up against it'
Plumpton's meeting on Sunday, due to feature the At The Races Sussex National, must pass an 11am inspection on Saturday.
The going is heavy, waterlogged in places, and more rain has been forecast.
Clerk of the course Mark Cornford: "I've been optimistic throughout the week, but the rain is slowly defeating us a little, shall we say.
"The forecasts we've had for the week have been pretty near the mark.
"Overnight there was 13 millimetres of rainfall, but it looks like today is going to be blustery with the odd shower.
"The forecast is, though, not so great overnight - we could 12 to 14mm (of rain).
"We are up against it, no doubt about it."