Sunday's high-profile fixture at Punchestown is subject to a precautionary inspection at 8am on raceday morning.
The John Durkan Memorial Punchestown Chase is the feature event on a fantastic seven-race card, but the meeting is under threat.
Punchestown's racing manager Richie Galway reports the track to be raceable, however, and is hopeful of beating the weather.
He said: "It's a precautionary inspection as we're perfectly raceable at the moment.
"We had 13 millimetres of rain overnight and it's still raining. We've not got any problems with wind, it's just the rain.
"They're talking about another 10 or 20 millimetres of rain, but the track is taking it well and I'm hopeful we'll be all right.
"I'd be very disappointed if we didn't race."