The typically modest jockey played down his own role in the success.
"I am extremely lucky to ride these horses. I'm only pointing them in the right direction. I could have been a lot better than I was there," he said.
A 22-length winner of the Cheshire Oaks in May, O'Brien's filly subsequently filled the runner-up spot behind Soul Sister in the Oaks at Epsom and was a warm favourite to go one better on home soil.
Early in the home straight, Thirimanne's supporters might have been seriously concerned, but thanks to Moore's persistent encouragement, the filly unleashed a dramatic late surge in the last half-furlong, securing victory by a mere half-length.
Trainer O'Brien praised Moore's exceptional performance, hailing it as a "brilliant ride."
"He re-motivated her. When she was in a little bit of trouble he kept her coming forward without panicking and got her out, then he asked her to come again," said the Ballydoyle master, who added that Savethelastdance would run again in the autumn and could be kept on in training next year.
“The ground was way different than what she ran on the last time. It's a long time since she ran. She had a break after Epsom and obviously, we knew this was her first run back for an autumn campaign.”
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