Aclaim provided trainer Martyn Meade with the first Group One success of his career with victory in the Qatar Prix de la Foret at Chantilly.
Having opened his account for the campaign in the Group Two Park Stakes at Doncaster a fortnight ago, the four-year-old lined up in Paris with major claims.
He was caught in a pocket behind the front-running Karar with two furlongs to run, but found top gear once switched wide by Oisin Murphy and got up late in the day.
So Beloved, trained by David O’Meara, flashed home to fill the runner-up spot.
Aclaim’s triumph meant of the six Group One events on the afternoon, four went to British challengers and the other two were trained by Aidan O’Brien-trained runners.
An emotional Meade said: “He’s a tough little horse. He tries so hard that he reduces me to tears. He comes to his best form at this time of year.
“Winning a Group One was something we had to do this year and now we’ve done it.
“My immediate reaction is not to run him again this year. He’s won a Group One and it’s job done.
“I’m not sure if he stays in training next year.
“He’s a real warrior.”