Sea The Stars became the first horse since Nashwan, in 1989, to complete the Eclipse, Derby and 2000 Guineas treble on Saturday.
It is an unbelievable achievement for the horse, who became only the fifth horse to achieve the accolade since 1900 after winning the Coral-Eclipse at Sandown.
The son of Cape Cross was unaffected by the blistering speed set by Lang Shining and Set Sail and he managed to fend off the challenge of Rip Van Winkle, who finally began to live up to the hype that surrounds him.
Ridden by Mick Kinane, the dual classic winner returned at odds of 4/7, with Rip Van Winkle at 11/2 and the Breeders Cup Turf winner, Conduit, back in third at 9/2.
The winning trainer, John Oxx, was understandably delighted with the result and paid tribute to his three-year-old: "This is what keeps you working. For 19 days out of 20, when you say what are you wasting your time for training racehorses when you can do something easier, these are the moments that keep you going.
"We'll have to have a think about where he goes next. We just go from race to race and we said after the Irish Derby we'd sit down and have a think about the rest of the year, but obviously it is after this race now.
"The Irish Champion Stakes at Leopardstown would be a major objective for him and we have to figure out what we are going to do in the meantime. There's the King George in three weeks and there is the International at York three weeks after that.
"He comes through his races well and the horse will have a big say where he goes as we'll see how he comes out of this.
"I can't see him running in two races before the Irish Champion Stakes, I think we'll have to miss one."
Winning jockey Mick Kinane added: "He is so quick out of the stalls with his pace and it was almost as if I hit the front too soon today, but it was hard for me to stop him.
"When the second horse came at me, he just picked up. You are never going to win by more than two lengths on him, he just does enough. I was hoping to be in front at the furlong marker because I know he quickens really well.
"You don't get many like him, he has so much early pace it is unbelievable."
Paddy Power were one of the first to react to the victory and cut the winner to 7-2 (from 4/1) for the Prix de l'Arc de Triomphe.
