Ghaiyyath won an exciting Coronation Cup race behind closed doors at Newmarket on Friday.
The Godolphin-owned, Charlie Appleby-trained five-year-old, ridden by William Buick, lived up to his status as the 11/10 pre-race favourite as he held off a late charge from 2019 Derby winner Anthony Van Dyck to take glory in the headline Group One race of day two of the four-day Qipco Guineas Festival.
Anthony Van Dyck was second, while Stradivarius and Frankie Dettori crossed the finish line in third.
Appleby said: "All credit to the team and many thanks to His Highness Sheikh Mohammed for allowing us to keep Ghaiyyath in training. To have five-year-olds around is a treat for any stable, but to have one the calibre of him is pretty special.
"He's some galloper and I knew after the first quarter-mile when William had him in that rhythm that it would take a good horse to get to him and there were many in the field.
"He was on it from flag-fall, but I could see he was in a rhythm we'd seen before. His mid-race move just kills them and it's great for him to get his first British Group One win.
"He's obviously effective at this trip, but we know he's not short of speed and we may now take him to the Eclipse at Sandown which is a race we like.
"One thing we've learnt about Ghaiyyath is that he is a top-of-the-ground horse, when in the early stages of his career we thought he needed a bit of give."
Additional reporting by the Press Association.
