Richard Hannon's Olympic Glory added a Group One victory to his prolific juvenile season with a hard-fought victory in the Prix Jean-Luc Lagardere (Grand Criterium) at Longchamp.
In four previous starts, his only defeat had come at the hands of ante-post 2000 Guineas favourite Dawn Approach in the Coventry Stakes at Royal Ascot.
He had subsequently won the Superlative Stakes at Newmarket and the Vintage Stakes at Goodwood, and was recently purchased by Sheikh Joaan Bin Hamad Al Thani.
Victory looked unlikely two furlongs out, however, as Kevin Ryan's outsider Indian Jade loomed large.
But champion jockey-elect Richard Hughes asked his mount for a major effort and he delivered, holding off What A Name with Indian Jade running a big race in third.
Richard Hannon junior, assistant to his father, said: "I'm delighted, he's done it very well. Sheikh Joaan bought him three weeks ago and he'll be very pleased.
"It took a lot to go in that ground. He didn't travel particularly well but that's become a habit of his.
"I'll have to speak to the racing manager. We'll sleep on it but that might be it for the year.
"I wouldn't rule the Breeders' Cup out completely and he has plenty of options for next year. The English Guineas or coming back here for the French Guineas."
Paddy Power cut the winner to 16-1 from 20s for the 2000 Guineas at Newmarket.
Ryan said of Indian Jade: "He's done everything right, travelled well and quickened up. He's what we thought he was. He won't run again this year and we'll train him for the Guineas."
His rider Jamie Spencer said: "It rode like a good race and I was very pleased with him. I was planning to make it but just wasn't able to."