This afternoon's jumps meetings at Leicester and Market Rasen have been abandoned due to frozen tracks.
However the meeting at Wincanton will go ahead after a second inspection.
Market Rasen clerk of the course Robert Bellamy said: "The course is frozen.
"We hit minus 5C overnight and there is nothing positive about the forecast to suggest the situation is going to improve enough throughout the day."
Leicester clerk of the course Jimmy Stevenson said: "We needed that sun to come out, but it's just not happened.
"It's not going to warm up enough in time, so we've had to call it a day unfortunately."
Wincanton clerk of the course Barry Johnson said: "We're going to have a crack. It's warming up all the time, it's 1C now and due to rise a bit more.
"We're 95% raceable at the moment so racing goes ahead."
Lingfield are scheduled to hold an eight-race all-weather Flat meeting which starts at 11.55am