Frost covers down at Newbury as temperatures could drop as low as -2C
The track at Newbury remained under protective covers on Friday to ensure the Betfair Super Saturday meeting is not under threat from frost.
Rain on Thursday into Friday prompted a going change to soft, good to soft in places, but no more is expected until racing starts.
Clerk of the course Richard Osgood said on Friday: "We're due a frost tonight, when temperatures may drop to -1C or -2C. We'll take sandbags off at 6am and as it gets light we'll start taking the fleece off.
"The rain we had will have all gone through and the wind that's blowing is helping dry the top of the covers.
"The forecast for tonight is basically dry with the frost coming in. Tomorrow will be a dry start before a band of rain comes in, but how much rain is in that is difficult to say. It may be light during racing, getting heavier as the day goes on."
Uttoxeter is the only jumps fixture facing an inspection, with stewards taking a look at 8.30am as frost is forecast. A mixture of frost and fleece covers are protecting vulnerable areas, with the going heavy, soft in places on the hurdles course.
Clerk of the course Charlie Moore said: "The course is totally raceable. There are many square metres of fleece down but the forecast is for temperatures to drop to between -1C and -4C. The temperatures will get up to 6C but won't get there very quickly. I'm quietly optimistic."
At Warwick the ground on Friday was soft, good to soft in places, with temperatures forecast to fall to -1C overnight. The most vulnerable areas were covered.
Clerk of the course Jane Hedley said: "All week the frosts we've had have been very slight and I'm not anticipating tonight being any worse. Rain is due to come along with milder temperatures pretty early in the morning."
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