Yeats confirmed himself as the major force of the staying division when following up his Royal Ascot victory with an equally emphatic success in the ABN Amro Goodwood Cup yesterday.
The one-time Derby favourite had relished his first crack at a marathon distance when sluicing up in the Gold Cup in June and repeated the trick in the feature race of the Glorious meeting.
Ridden by Mick Kinane in the absence of Kieren Fallon, the heavily-backed 10-11 favourite glided to the head of the pack as they turned for home and readily went clear to record a five-length victory, shaving a fraction off the course record in the process.
Geordieland (16-1) excelled on his first start for Jamie Osborne in filling the second spot under Frankie Dettori, while Tungsten Strike (25-1) was a further three and a half lengths back in third.
Yeats was the first since Double Trigger in 1995 to pull off the Ascot-Goodwood double and hailing from the County Limerick yard of Aidan O'Brien, he becomes the second Irish winner.
The trainer said: "He is a class horse and when you get a horse like him that stays the trip it makes a difference.
"We would hope to look at the Irish Leger and we will have to see after that. He is in the Melbourne Cup, but we don't want to take too many risks this early with him."
La Cucaracha produced a blistering burst of speed to get back in the winning groove in the Audi Stakes.
The Barry Hills-trained mare had been without a success since last year's Nunthorpe Stakes.
But she showed all her old sparkle in this Group Three contest, which is registered as the King George Stakes to defeat Desert Lord by a three-quarters of a length verdict.