Musselburgh take precautions
Musselburgh's meeting on Friday is subject to an 8am precautionary inspection on raceday morning.
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Although the ground is perfectly raceable, there is a threat of an overnight frost.
Overnight temperatures could dip to minus 2C.
Musselburgh clerk of the course Harriet Graham said: "It's very precautionary.
"We were minus 1C last night, with temperatures only going to get up to 3C today.
"We are likely to be minus 2C overnight which, if that is the case, I'd be very hopeful.
"We still thought we ought to have a look, just in case the forecast is wrong by a few degrees."