Wetherby inspect on Thursday
Thursday's meeting at Wetherby is subject to an 8.30am precautionary inspection on raceday morning.
Although the Boxing Day fixture at the Yorkshire circuit was given the go-ahead, more rain is forecast overnight.
The going is currently heavy, soft in places.
Clerk of the course Jonjo Sanderson said: "The forecast tonight is varying in terms of quantities of rain.
"The ground will also have opened up as we are racing on it today.
"Hopefully if we have the minimum rain that has been forecast there will be no problems."