Hamilton's fixture on Monday is subject to an 11.30am precautionary inspection on Sunday.
Although the track is raceable, course officials are taking no chances in light of a mixed forecast.
The going is currently heavy at the Scottish circuit.
Clerk of the course Hazel Peplinski said: "It's not been a good spell. "We raced on Sunday and Monday on heavy ground, which opened the ground right up, and we've had very few dry days since.
"The forecast for Sunday is a big worry, which is why we are taking a look when we are."
Update:
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