Irish trainer Ger Lyons has said he will not race Lightening Pearl again this season as he prepares the filly for next year's 1,000 Guineas.
Lightening Pearl won Saturday's Group One Cheveley Park Stakes at Newmarket to give Lyons his first success at flat racing's highest level.
Lyons, from County Meath, said: "That's her season finished, and I look forward to having a go at the 1,000 Guineas."
The win was also the biggest so far for owner Sheikh Fahad Al Thani of Qatar.
Sheikh Fahad is the sport's biggest new supporter, and, as Qipco, backer of the new British Champions Day at Ascot on October 15th.