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."
29 March 2015Ferof in hunt for Aintree riches
Telescope back in focus
Clouds given National clearance
Chrome given Royal summons
Flemenstar unplaced on return
Dolniya excels in Sheema Classic
Solow gallops to Turf glory
Gabrial just divine in Lincoln
Naadirr strikes to take Trophy
Sole switches on late power
Tullius has to pull out the stops
Romsdal up and running
Panther pounces for Gold
28 March 2015Prince Bishop rules the World
Prince Bishop rules the World
Raven swoops for De Sousa
Hanagan strikes first blow
Stack harbours Lincoln doubts
Odeliz gears up for Park
Mshawish given green light for Turf
Margarson keeps faith in Guest
Havlin has high hopes with Hopkins
Togo lands another for Pakidis
Longsdon and Fehily rule with Law
Coleman picks up ride on Druids
Power out to end Meydan hoodoo
Jack firmly in Trophy hunt
McCoy honoured with Celebration
O'Brien set on Flat resumption
'Rock star' Chrome seeks World fame
27 March 2015Romsdal returns at Kempton
Solow flying high for Head
All to play for at Doncaster
Flemenstar makes Navan return
Panther primed for big Gold run
Derby Fever for Godolphin
Toast recovering from setback
Motion out to keep winning Sequence
Home comforts at Newbury
Curtis keen on Townend for Tea
Flintham upholds family honour
Newmarket moves to avoid split
Weld sweet on 'middleweight' Zawraq
Eagle poised for Curragh return
Signal to swerve Wetherby gallop
Ballydoyle brigade excites Hensey
Angel leads the way in Lincoln
26 March 2015Sruthan gets Gladness go-ahead
Kelly to contest Wolves ban
Gatsby thrills in Meydan spin
Monaghan on the up
On-song Cappella has Classic aim
Godsmejudge on track for Aintree
Ground key to Found Guineas attempt
Thriving Berkshire Ganay-bound
Gleneagles set for Curragh spin
Ginge handed Topham option
Side sights set on World place
Tizzard 'really pleased' with Card
Limato pencilled in for Ascot
Spinal issue sidelines The New One