Racing at Plumpton on Monday and Taunton on Tuesday has been abandoned as the tracks are waterlogged.
There are also problems at Leicester, where there will be an inspection at 10am on Monday ahead of Wednesday's jumps meeting.
Heavy rain at Plumpton prompted an 8am inspection on Sunday morning, after which officials were left with little option. Taunton went the same way during the same morning.
Plumpton clerk of the course Mark Cornford said: "We had 22 millimetres of rain overnight - we were told we could get eight or 12 millimetres. If we'd had four or five we could have given it another 24 hours and seen where we are, but 22 millimetres definitely wasn't on the horizon.
"I don't feel there is enough time for enough of an improvement, it's totally unraceable at the moment. There's still a chance of a shower this evening, and tomorrow afternoon the rain comes back. There's water lying in lots of places that it wasn't yesterday."
Heavy rain after several inches of snow had thawed gave Taunton officials no alternative but to call off their fixture.
"We had about three to five inches of snow which melted on Friday and then we had an inch of rain on Friday night and a further inch of rain last night," said clerk of the course Michael Trickey.
"That was on already heavy ground and there was no way it was sustainable. There is more rain forecast on Monday and Tuesday, so I'm afraid we've had to come to the sad conclusion."
The rapid thaw has caused fresh problems for Leicester. Five inches of snow on Saturday was quickly followed by milder weather and rain, and has resulted in waterlogging.
Clerk of the course Jimmy Stevenson said: "I'm not surprised - I knew this was inevitable. We had five inches of snow on the course on Saturday. That's all gone with the rain, and we are left with a bit of water running round. We've got a dry 24 hours now, so we will have a review in the morning."
20 October 2014No rushing back for Long Run
Dynaste leads Old Roan contenders
Grands Crus retired
Chelmsford City handed 58 fixtures
Exciting Berlais heads to Chepstow
Force handed Hong Kong mission
Park favourite for Trophy hunt
Al Kazeem team eye Hong Kong trip
Alderwood to take two-mile test
Dynaste leads Old Roan contenders
Commemorative bound for Breeders'
Hennessy aim for Clouds
Slade eyeing victorious swansong
Fiesolana on Breeders' trail
High-class possibilities for Trophy
Chelmsford City handed 57 fixtures
French option for Maarek
Billy back for chasing bow
Judge to bid for Breeders' glory
Pipe mulls Moon target
High hopes for Holywell
Judge in Breeders' frame
Hill stars for Stoute and Moore
Gabriel lifts Garnet for Deegan
New One back with a win
Light career hangs in balance
Stars shines on hurdling debut
King big guns ready to start
Tullius camp consider options
Doyle unlikely to appeal Ascot ban
Mullins prepares formidable team
19 October 2014New One breezes to victory
Lavelle has Becher plan for Lodge
Riches heading on road north
Down Royal plan for Tiger
New makes Kempton return
Panther hunting Canadian prize
Sun takes a shine to Cork
Hobbs upholds Showcase record
Another gold strike for Bronze
Gallant Noble a true Champion
Head turns on Charm in QEII
Madame is Ascot leading lady
Forgotten rules for Weld
Byron is poetry in motion
18 October 2014Forgotten rules for Weld
War misses Breeders' date
Rakti reaps Caulfield reward
Chatez bids for Balmoral crown
Lavelle duo top Cheltenham card
Integral takes on the boys
Noble on Champion mission
Belardo a Dewhurst sparkler
Together stands firm for Ballydoyle
Ivawood felled by plucky Thought
Crowley doubles up on Berkshire
Tendon injury sidelines Tent
17 October 2014Minstrel calls the tune
Sceaux set for chase campaign
Sari seeking Ascot gold
Charm out to show winning Spirit
Estimate aiming to go the Distance
French veteran back for more
O'Meara - G has the Force
Fallon considers American switch
Cossack maintains Elliott's record
Vautour goes chasing
Lucida heads Godolphin trio
McCoy sits out weekend action
No Middle ground for classy Ivawood
Big guns hold sway for QEII
Cirrus stands firm for Champion
Hanagan: Estidhkaar no soft touch