Ballydoyle winning the Total Prix Marcel Boussac © Photo Healy Racing
Ballydoyle ran out a determined winner of the Total Prix Marcel Boussac at Longchamp for Aidan O'Brien and Ryan Moore.
Winner of the Debutante Stakes before finding stable companion Minding too strong in the Moyglare Stud Stakes, the daughter of Galileo was the 5-4 favourite to clinch Group One glory in Paris.
Karl Burke's British challenger Katie's Diamond took the field along for much of the one-mile journey, with Moore settling Ballydoyle in midfield.
As the pacesetter began to falter, Jim Bolger's Turret Rocks hit the front before being joined by the improving Ballydoyle.
The two Irish raiders settled down to fight it out and O'Brien's charge won the argument fairly comfortably in the end.
Qemah came from the rear to grab third, with the previously unbeaten Antonoe disappointing.
O'Brien said: "She's a beautiful mover and loves fast ground.
"You'd be very happy with her. You'd think she's a filly you'd really look forward to for next year."
BetVictor make Ballydoyle the 3-1 favourite for the Qipco 1000 Guineas, while Betfred go 5-1 and Paddy Power 7-1.
When asked if Ballydoyle will be campaigned with the fillies' Classic in mind, O'Brien said: "The boys will decide that, but I imagine that's what we'll look at.
"She would have the option to go to America for the (Breeders' Cup) Juvenile, but the boys will decide that themselves.
"She loves good ground."
Bolger said of Turret Rocks: "Basically she's an Oaks filly for next year and I was very happy with her run. Kevin (Manning) said the ground is fast, and if it remains that way I might be tempted by a mile-and-a-quarter race at Saint-Cloud before the end of the season."
Harry Herbert, representing Al Shaqab Racing, said of Qemah: "I was delighted with her effort. She might have been second with a clearer run."
Owner Khalid Abdullah's racing manager Teddy Grimthorpe is inclined to put a line through Antonoe's effort.
He said: "She travelled wide and never relaxed. It was too bad to be true."
