Ryan Moore produced the Willie Mullins-trained Clondaw Warrior with a perfectly-timed challenge to land the Ascot Stakes which was followed up by a win on Washington DC in the Windsor Castle Stakes to secure his treble, having already struck gold aboard the brilliant Gleneagles in the St James's Palace Stakes.
Moore and Mullins combined to land the two-and-a-half-mile handicap Ascot Stakes with Simenon in 2012 and Clondaw Warrior was heavily supported as the 5-1 favourite for what was his first start on the Flat since winning Leopardstown's November Handicap last autumn.
After breaking from his wide stall, the eight-year-old was quickly brought across the track by Moore, who was seemingly keen to play his cards as late as possible.
Clondaw Warrior had just a couple of rivals behind him rounding the home turn, but Moore brought him widest of all to challenge and he stayed on powerfully to get the better of Fun Mac by half a length.
Elishpour and Noble Silk finished third and fourth respectively.
Moore said: "I don't think it was a sedate pace, I was chatting to (Richard) Hughesie and I was flat out the whole way.
"Credit to Willie Mullins, his horses always stay so well and that makes the difference.
"I was never going well but when we turned in they started coming back to me, it wasn't comfortable.
"He enjoyed the quick ground and I'd say Willie has trained him for the race for a long time."
Ruby Walsh's wife Gillian is a part-owner and the jockey said: "I'm not even the work rider, David Casey rides him, I'm very little to do with it.
"It's brilliant, it's hard to believe Willie got him beat off 52 at Roscommon.
"That's half the plan, the other half is the Galway Hurdle!"
Mullins said: "Well now I've got my instructions I know what to do!
"I thought Ryan gave him a fantastic ride. I took my binoculars off him with a mile to go, I thought he had too much to do.
"We didn't give him any orders, I wouldn't dare give him any round here, the only thing I told him was that he'd have one burst of speed and when Fun Mac came at him I thought that was it.
"This was the plan, the girls really wanted a runner but when the conditions of the race changed we wondered if we'd get in so we decided to take our chance and it worked."
Moore's final mount of the afternoon Washington DC was well fancied at 5-1 after winning once at Tipperary and finishing second on his other two starts for Aidan O'Brien.
American challenger Ruby Notion set a blistering early pace, but DC swept by her in the last of five furlongs and just had enough in the tank to hold off the fast-finishing Areen by a head.
Steady Pace, the 4-1 favourite, was third.
Moore said: "I'm delighted with him, he's a very fast colt.
"We probably could have gone with the American horse if I'd let him, but I wanted a lead for a bit longer.
"He had a little look around when he was left in front, but I'd say there's plenty more to come.
"He's got an awful lot of pace. He'd probably get six, but at this stage there's no real need."