Ryan Moore produced a superb ride to win the Albany Stakes - which opened day four at Royal Ascot - on Aidan O'Brien's Fairy Godmother.
The winner's stablemate Heavens Gate blazed a trail down the centre of the track in the six-furlong Group Three contest as Moore found himself boxed in at the back of the field on board the 15/8 favourite.
Moore was forced to switch the daughter of Night Of Thunder dramatically to his left with just under two furlongs to run and Fairy Godmother made rapid progress around her rivals towards the stands' side.
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She eventually nosed ahead close home to win comfortably in the end by three-quarters of a length from Ollie Sangster's Simmering, who had also come with a strong late run under Jamie Spencer, with Heavens Gate third.
Fairy Godmother quickly earned quotes of 5/1 for next year's 1000 Guineas following her win.
"I gave her an impossible task and she got me out of a hole," said Moore. "It's incredible she was able to win from that position so it's all credit to her. She's a very good filly.
"Down at the start she looked different class, she suggested that before she ran, and when she won last time. Today, that was a big performance."
O'Brien added: "Ryan gave her an incredible ride. She's an incredible filly, isn't she?
"We thought she couldn't get beat the first day, and couldn't believe she got beat. Ryan said he was just going to teach her and educate her the next day, and take his time on her, and she did the same thing - he came from an impossible position and won well on the line [at Naas].
"What she did there [today] is incredible, and she's only going to get better with every race, she'll get stronger and will stay. She's very exciting.
"Ryan said he thought she was going to be a Moyglare filly, so seven would be no problem for her this year. She's obviously exceptional.
"Our other filly, Heavens Gate, ran a stormer. She's a good filly and for Fairy Godmother to pick them up like that was incredible."