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."
24 March 2017Charlie Appleby maps out Classic gameplan with exciting filly Wuheida
Coneygree going great guns for Sizing John showdown at Punchestown
Sam Twiston-Davies sides with Saphir Du Rheu in Grand National at Aintree
Jean-Claude Rouget stars Almanzor and La Cressonniere set for big 2017
Cheltenham ace Yorkhill heads Ryanair entries at Fairyhouse
Supreme ruler Labaik in great heart with Fairyhouse and Punchestown on the radar
'Slow process' as Toast Of New York continues to be assessed for racing return
Hopes high Derek Fox will return from injury to ride One For Arthur in National
Mags Mullins in no hurry to map out Debuchet plans
Enda Bolger hoping Aintree fences will fire up On The Fringe
23 March 2017Nigel Hawke continues hot streak at Ludlow
Sweet success for Bonbon at Cork
Let's Dance figures in Fairyhouse list
Cheltenham hero Presenting Percy in frame for Grade One honours at Punchestown
Karl Burke keen on Temple Stakes return for Quiet Reflection
Red-hot Richard Johnson secures Warwick four-timer
Warren Greatrex has Punchestown plan for Haydock winner The Nipper
Ruth Carr issues Kempton poser to new recruit Sovereign Debt
Aintree 'the target' for injured Barry Geraghty
Willie Mullins has strong hand in Topham Chase at Aintree
Kim Bailey happy to play it cool with Charbel after Cheltenham woe
Andrew Slattery looking to new recruit Dinkum Diamond to sparkle at Naas
22 March 2017BHA planning to toughen up licensing procedures for new jockeys
Tully East likely to head to Punchestown following Festival triumph
David Pipe looking to National duo to shine on Aintree stage
Dai Walters hoping to mount Mildmay challenge with Whisper
Arrogate drawn in stall nine for Dubai World Cup assignment
Sandra Hughes hoping Acapella can make Punchestown amends
Vieux Lion Rouge leads Pipe's National assault
Clan Des Obeaux back in the groove at Exeter for Paul Nicholls
Robin Dickin gives Thomas Crapper Topham entry at Aintree
More Of That replaces Minella Rocco as Jonjo O'Neill's Grand National hope
Creggs Pipes blowing hot as Naas stages Flat curtain-raiser
Joseph O'Brien says Edwulf is 'absolutely perfect' and on the way home
Nico de Boinville says Might Bite has the appetite to show 'immense potential'
Fairyhouse-bound Foxrock set to swerve Grand National at Aintree
All roads lead to Aintree for Paul Nicholls' Saphir Du Rheu
21 March 2017Louisa Carberry to break new ground with first British runner at Newbury
Ch'Tibello set to seek Punchestown compensation for Cheltenham disappointment
Colin's Sister to seek Fairyhouse redemption following late Cheltenham absence
Jonjo O'Neill rules Minella Rocco out of Grand National
Jilly Cooper and Bob Champion the star guests at Raceform reunion
Bill Turner hoping late Brocklesby contender will emerge from small team
James Doyle set to continue Australian role with Godolphin
David Pipe could seek Aintree atonement with vanquished Moon Racer
Airlie Beach in contention for Fairyhouse prize
Ellmarie Holden planning chase campaign for Ex Patriot next term
Malcolm Jefferson to target Aintree with Arkle runner-up Cloudy Dream
Harrington sets sights on Punchestown Gold with Cheltenham hero Sizing John
Colin Tizzard biding his time on Finian's Oscar decision
Nicky Mackay set for lengthy spell on sidelines following Chelmsford spill
Colin Tizzard considering Bowl bid with both Cue Card and Native River
Aintree Hurdle option for Yanworth with chasing campaign on the horizon