Relief Rally flew up the stands side rail to land the Sky Bet Lowther Stakes at York.
William Haggas' filly was a three-time winner coming into the Group Two contest and started as the 2-1 favourite under Tom Marquand after victory in the Super Sprint at Newbury.
Ridden patiently on her first try at six furlongs, the Simon Munir and Isaac Souede-owned bay began to make headway in the final furlong and pulled away as the line approached to prevail ahead of Aidan O'Brien's Cherry Blossom.
