Enable made history by holding off a late challenge from Sea of Class to win this year's Prix de l'Arc de Triomphe at Longchamp.
Ridden by Frankie Dettori the filly, which won at Chantilly last year, has now become the first British-trained horse to win the famous race twice.
She's got the job done and it's very much down to her mind and ability.John Gosden
Enable, trained by John Gosden, had a stand-out year in 2017, winning five Group 1 races, but has found things harder going this year.
She had just one run at Kempton last month and Goden explained after her historic win that preparations since then had not gone well with the horse running a temperature.
He told ITV: "She was not at her best today. I have had a difficult year with her, it is entirely down to the filly and her guts and a lovely ride from Frankie.
"The ground is a little slick - I'd liked to have seen more rain - but she's got the job done and it's very much down to her mind and ability. She's a wonderful filly and it's an enormous sense of relief."
It was another impressive run for Enable, Dettori ensuring she stayed in contention before hitting the front.
However, there was a determined late challenge from Sea of Class ridden by James Doyle.
The William Gallas-trained filly was drawn out wide and looked to be well out of contention coming into the home turn.
However, she ran well to ensure an exciting finish though Ensure did just enough to hold on and claim a second successive Prix de l'Arc de Triomphe win.
Sea of Class finished second with Cloth of Stars third.
Enable, on the back of this win, is 8/13 on a win and each way bet to win the Breeders' Cup Turf at Churchill Downs next month. Roaring Lion is 999/1 with Crystal Ocean 999/1.
On the same day Expert Eye is 9/2 to win the Breeders's Cup Mile.
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