Saturday's meeting at Doncaster, which was due to feature the Sky Bet Chase, has been abandoned due to snow.
Clerk of the course Roderick Duncan was forced to call off Friday's card, the first of a two-day fixture on Town Moor, following an inspection on Wednesday. He then called a 2pm check for Saturday's card, which showed the track to be unraceable with no chance of sufficient improvement.
Duncan said: "We have abandoned due to snow and frost. There's a severe frost forecast for tonight, with temperatures down to minus 4C or minus 5C. Temperatures are then not due to rise above zero on Friday with a Met Office warning for further snow on Friday night, so there is no hope."
Officials at Cheltenham are "extremely hopeful" Saturday's Trials Day meeting will go ahead as planned. Staff at Prestbury Park have been battling the elements all week as they try to get the track ready for a meeting which is set to feature Sprinter Sacre.
While the track has been covered for over a week to guard against frost, snow earlier this week looked problematic as it was lying on top of the covers. However, clerk of the course Simon Claisse and his team have been working to remove the snow.
And while an 8am inspection is still planned for Friday, officials are optimistic about their chances of racing. Should the track not be fit on Saturday, Cheltenham also has the option of delaying the meeting by 24 hours to Sunday.
Cheltenham communications manager Andy Clifton said: "There's been a mammoth effort from the ground staff and the maintenance teams over the last couple of days to clear the covers. I think they have cleared around a third of the snow from the track and most of the remainder will be removed today.
"We are forecast frost tonight, with temperatures set to drop to minus 4C, but once that's cleared in the morning, we will take the covers off tomorrow afternoon.
"There's a bit of snow forecast on Friday evening followed by rain but with temperatures above freezing so that is not a worry, as things stand. It's soft ground but we can take some rain and as the snow has been largely cleared off the covers, it will not be melting on to the track.
"We will hold the inspection at 8am on Friday as planned, and at that point we expect to be able to give the go-ahead for Saturday. However, having come this far, we will retain the option of racing on Sunday and have declarations for that ghost card, as it is. We are extremely hopeful of racing going ahead as planned on Saturday, though."
28 May 2016Adrian Nicholls denied farewell ride due to Catterick ground
Grizzel books Ascot ticket with Beverley glory
Ger O'Neill taken to hospital following Beverley fall
Tepin team mulling Royal Ascot plan following Saturday spin
Quiet Reflection makes memorable Haydock impression in Sandy Lane
Home Of The Brave takes Jury verdict at Haydock
Prince reigns at Beverley for Cowell and Morris
Ice Slice too sharp for Clotilde at Haydock
Journey goes the distance for Gosden and Dettori at Haydock
Ger Lyons vies for Naas Listed honours with Psychedelic Funk
Jockey Adrian Nicholls to call it a day after Catterick ride
Anamba returns at Naas for Mick Halford
Godolphin's Skiffle supplemented for Oaks at Epsom
Royal Ascot beckons for Nasimi following Haydock triumph for Charlie Appleby
Michael O'Callaghan considers Royal Ascot for Naas-bound Spy Ring
Ed Walker sets his sights on France with Stormy Antarctic
Martyn Meade sweet on Aclaim at Naas
Mark Johnston retains faith in Buratino ahead of Haydock return
Godolphin's Brave buy out to strike at Haydock
John Gosden pinning his hopes on Journey at Haydock
Ann Duffield hoping Rainbow emerges from the Mist at Beverley
Mark Johnston hoping for Hilary Needler repeat with Boater
27 May 2016Ed Dunlop has Goodwood aim for Gold Cup hero Trip To Paris
David Nicholls 'strenuously denies' sexual assault charges
Plausible excuse emerges for Intilaaq's Sandown no-show
Ann Duffield hoping Rainbow emerges from the Mist at Beverley
Roger Charlton tempted by French Derby for Imperial Aviator
Henry Candy expects bold show from Twilight Son at Royal Ascot
German Guineas winner Knife Edge has Prix Jean Prat option
Zonderland flies home in Heron Stakes at Sandown
Time scores top marks in Brigadier Gerard Test at Sandown
Pallasator blows away Dynamite in Henry II victory at Sandown
Global claims Sandown Applause with National success
Tepin facing crucial spin ahead of her planned Royal Ascot trip
Tullius team set to apply blinkers as he bids for Diomed glory at Epsom
Henry Candy pointing towards Queen Anne with Limato
Frankie Dettori reveals 'pressure' ahead of Derby date with Wings Of Desire
26 May 2016Yarmouth given the go-ahead to resume racing following track troubles
Joe Tuite planning autumn campaign for Litigant following a setback
Northumberland Plate bid on Ballynanty agenda
More injury woe for Sammy Jo Bell after Carlisle fall
Hugo Palmer plays down Frankel colt chances at Haydock
Harry Dunlop sets Robin Of Navan 'massive test' in French Derby
Clive Cox ponders next move for My Dream Boat
Gershwin set to miss Epsom and wait for Royal Ascot
Winners keep flowing for Adrian Keatley in wake of Classic success
Curragh winner Van Der Decken has Royal Ascot option
Zonderland bids to build on Guineas sixth at Sandown
Speedy Mehmas on National service at Sandown
High-class entries for Sussex Stakes
Sammy Jo Bell facing further injury setback
Max Dynamite set for power-packed return at Sandown
Roger Charlton hoping Time can pass Brigadier Gerard Test
25 May 2016Karl Burke delighted with Felix Leiter strike at Lingfield
French Derby set to be next challenge for Zarak
Michael Halford on weather watch ahead of Anamba Naas outing
Tryster on course for Prince of Wales's date at Royal Ascot
Queen Anne at Royal Ascot on Ervedya agenda
Paddy Payne hoping sister Michelle will consider riding retirement
Jim Best guilty verdict quashed and rehearing announced by appeal board
Found back in hunt for Coronation Cup at Epsom
Jonathan Portman celebrates Wolverhampton win with Ickymasho
Trials take place at Yarmouth ahead of return to racing action
Andrew Thornton happy to put in the miles as landmark looms
A Shin Hikari dazzles for Japan in Prix d'Ispahan at Chantilly
Godolphin set to add Goodwood winner Skiffle into Oaks mix
Wings Of Desire delights John Gosden in Epsom workout
Kieren Fallon set for Sir Michael Stoute Derby reunion with Across The Stars