Officials at Sandown have called a 4pm inspection today ahead of their all-chase card tomorrow.
There are two areas of the chase course that are causing concern after eight millimetres of rain fell on Friday morning.
An early-morning inspection resulted in the abandonment of the scheduled hurdle races on the programme due to waterlogging. They were replaced by three extra chase races.
"Most of the chase course is absolutely fine, but there are a couple of places that haven't taken this morning's rain that finished at 11am as well as we'd hoped. We ended up with about eight millimetres of rain," said clerk of the course Andrew Cooper.
"We just need to take stock of how it is. We've got nearly 24 hours of hopefully dry weather to come. There are a couple of areas - one around the pond and one round the downhill section of the course - that are plenty wet enough."
The chase course is described as heavy, soft in the back straight.
Saturday's meeting at Fairyhouse has been cancelled after further overnight rain at the track.
Officials abandoned their scheduled chases on Thursday but had hoped to run an all-hurdle card. However, they have now had to call off the entire fixture.
The racecourse tweeted: "Following further rain tomorrws meeting @Fairyhouse is cancelled."
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