Lingfield is hoping to hold a chase and bumper programme on Friday, despite having to call an inspection for 8am on Thursday.
The three scheduled hurdles races have already been scrapped as that track is waterlogged and has no chance of drying out in time.
The British Horseracing Authority has agreed for two of the existing races, whichever has the most final declarations on Thursday, to be divided to form a six-race card.
"We decided to draw stumps on the hurdles course. It will not be fit so to give us every opportunity to race we've agreed with the BHA we will divide two of the races to make a six-race card," said clerk of the course Neil MacKenzie Ross.
"We are still going to inspect at 8am and go from there.
"The chase course is currently not raceable. We do need to see some improvement. However, it is in better shape than the hurdles course.
"There is some light patchy rain around, but it won't make much impact, really. It's whether the course can get fit in time.
"There are a couple of areas of false, unstable ground which are pretty much unavoidable so we need to see some improvement there."
The first race will now be at 1.20pm.
29 July 2015Tributes pour in for O'Sullevan
It's Shanahan's turn at Galway
Sir Peter O'Sullevan dies, aged 97
Kachy not for catching in Molecomb
No Sussex regrets for O'Brien
Solow flying high at Goodwood
Highland reels in Gordon rivals
Fortune favours Twiston-Davies
Peacock pair vie for Galway glory
Shalaa in top trim for Richmond
Dunlop excited by Trip to Goodwood
Moviesta gets King George go-ahead
Karakontie has Deauville date
Dog delivers for Mullins and Walsh
Tint proves Topaz jewel
Maguire back in the saddle
Blue back with a bang
Tough Toormore takes Lennox glory
All roads lead to Arc for Postponed
Logan shines for Kirby
Frankie grabs Gold at Goodwood
So seeking Sussex success
28 July 2015King targeting Molecomb reign
Mullins hoping Bob is back
Wayman lands BHA role
Medrano eyeing Gordon glory
Options open for Force
Group race aim for Nisser
Modem takes control
Solitaire shines in Weld double
Bach in business
Vastonea out to sparkle in Topaz
Tanzeel unlikely for Cup date
Birch bids for Vintage victory
Toor targets Lennox triumph
Gleneagles misses Solow clash
Charlton eager for Golden Test
27 July 2015Modem takes control
Bach in business
Morny 'ideal race' for Gutaifan
Fahey ponders options for Guest
Perth double-header a washout
Sovereign option for Kodi
Salisbury option for Salvo
Group One trio top Nassau entries
Rain claims Tuesday Perth card
Perth card in doubt
McDonald nets Carlisle hat-trick
Mondialiste impresses in Pomfret
Injury in stalls forces Pilot out
Coleman lands Ferguson role
Gutaifan takes Papin honours
O'Brien plots Goodwood Air raid
Toormore seeks Lennox redemption
Buratino to take flight in Phoenix
Sovereign too soon for Elm Park
26 July 2015Lonsdale aim for admirable Cookie
Murphy looking for Top performance
Rizeena to chart Rothschild route
Erupt firing for Niel Arc prep
Meade sweet on Hugh's for Kurland
Newland considers Pineau future
Injured McCullagh 'very stable'
Ship ready to Fire in Pomfret
BHA to launch Bid inquiry
Post delivers in King George epic
Horn set York mission
Speedy Tanzeel downs Dash rivals
Guest is heaven sent for Fahey
Tullius topples Tonto at York
Goodwood heroes back for more
Besh the best in Princess Margaret
Sixth Sense an Ascot blockbuster