The British Horseracing Authority has put provisional plans in place for an all-chase card at Sandown on Saturday.
The Esher track will be subject to an inspection at 8am on Thursday, with the plan to come into place if the hurdles course is deemed unraceable. That would see three more contests over fences added, to make a six-race card.
If the meeting – which is due to host the Grade One Scilly Isles Novices’ Chase – is able to proceed as originally scheduled with both chase and hurdle races, the three additional chases will be abandoned.
Monday’s meeting at Hereford was called off due to a waterlogged track.
Officials had called a 7.30am precautionary inspection after 10 millimetres of rain on Sunday afternoon, with strong winds and further rain forecast overnight.
However, an earlier decision was made with the track unraceable due to flooding on a bend and further areas of standing water.
Clerk of the course Ben Hicks said: “We have had 22mm in the last 24 hours and there’s more in the forecast, possibly another 10mm today.
“We have some flooding on the GB Liners bend and there’s no chance of improvement today.”
Waterlogging has also claimed Wednesday’s card at Leicester.
A 7.45am inspection was called and clerk of the course James Stevenson had a straightforward decision to call off the meeting.
He said: “We had 10mm overnight but we were starting off on the back foot as we were already heavy and knew we couldn’t take much more.
“We have more rain forecast and it won’t improve for Wednesday.”
There will be an inspection at Exeter at 8am on Tuesday regarding Wednesday’s fixture following a further 9mm of rainfall by mid-afternoon on Monday.
A statement on X said: “The course is currently unraceable with standing water in places. The forecast continues to have a wet outlook over the next few days.”
Thursday’s Ffos Las meeting has also been cancelled, with 62mm of rain in recent days resulting in a waterlogged track and more heavy rain forecast on Wednesday.