The seven-year-old mare, trained by Peter Atkinson, was sent off a 10-1 chance for the fiercely-competitive handicap but was pulled up by Henry Brooke after weakening quickly three flights from home in the prestigious race won by Kalashnikov.
"She seems absolutely fine. She just hated the ground, I think. It was just far too soft for her," said Atkinson's wife, Lucinda.
"That would have been the softest she's ever had to deal with. Soft at Doncaster is a bit different to the soft on Saturday.
"We're not in any rush to make any plans. We'll just let the horse tell us where she wants to be and go from there. We've made no decision on anything at the moment."
Irish Roe had gone into the Newbury feature on the back of two wins at Doncaster and a creditable second to Maria's Benefit, also at the South Yorkshire track.
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