Outsider Jwala pulled off a shock victory in the Nunthorpe Stakes at York's Ebor Festival.
The four-year-old filly, trained by Robert Cowell and ridden by Steve Drowne, beat favourite Shea Shea into second place, with the highly-fancied Sole Power coming in third.
Previous Nunthorpe Stakes winners
Ortensia (William Buick)
Margot Did (Hayley Turner)
Sole Power (Wayne Lordan)
Borderlescott (Neil Callan)
Borderlescott (Pat Cosgrave)
Kingsgate Native (Jimmy Quinn)
Reverence (Kevin Darley)
finished 17th behind Moviesta at Goodwood on 2 August.
But Moviesta, who is part owned by QPR manager Harry Redknapp, finished last in York.
Drowne returned to racing in March after a year out with an illness that saw him lose his licence.
The jockey said: "Everyone knows my problems last year, but you need a horse like this to bounce back.
"You just need to land one like this and it gets you back. She's a fabulous filly."