Sans Frontieres swept down the outside of the field to run out a cosy winner of the Irish Field St Leger at the Curragh.
Rejuvenated of late by the application of headgear, Olivier Peslier rode a confident race on the 13-8 favourite.
Smart mare Profound Beauty looked in command when she took over a furlong and a half out, but it soon became apparent Peslier had every move covered on Jeremy Noseda’s four-year-old.
Peslier never had to get that serious to reel in Dermot Weld’s charge, with three-quarters of a length the winning margin.
Flying Cross was third for Aidan O’Brien.
William Hill cut Sans Frontieres to 14-1 from 25-1 for the Melbourne Cup.
Peslier said: “I’m very happy to win the race.
“Mr Noseda said if the horse is relaxed he will win. I didn’t want to fight with the front-runners, I wanted to come late and it worked.
“I hope he will be (a Melbourne Cup horse).”
Barry Simpson, racing manager to winning owner Sir Robert Ogden, said: ``It's a first Group One for Sir Robert and I'm thrilled for him and the horse.
“Sir Robert spends most of the winter away, so his interest in jumping has diminished a little bit.
“We’ve bought Flat horses for the last three or four years and we are delighted with what he has done today.
“Jeremy told me he earlier in the week he had done the best piece of work he ever has for him.
“I must admit the rain put us off a bit – he’s coped with it but I don’t think conditions really suited him.
“We will talk it over with Sir Robert, but the plan was to find out if he got the trip and Melbourne is very much on the cards.
“Sir Robert has been very keen to go to that race and run well there.”