Friday's jumps meeting at Wetherby has been abandoned due to a waterlogged track.
With the ground already saturated, the situation was further compounded by another 15 millimetres of overnight rainfall.
Clerk of the course Jonjo Sanderson said: "The rain we had last night knocked us back by about two days.
"We wouldn't be able to race today and there's no way things will get much better by tomorrow, so we've made an early call."