Aidan O'Brien's Ten Sovereigns (9-2) raced to victory in the Group One July Cup over six furlongs at Newmarket.
It was a fifth victory in the race for O'Brien and a second in successive years for jockey Ryan Moore.
Favourite Advertise, ridden by Frankie Dettori, was second, with three-year-olds claiming the first five places.
Ten Sovereigns, unbeaten as a two-year-old, had been 10-1 in the betting before a surge of interest in the morning.
On good to firm ground, the field of 12 split into two groups. Moore took up a central position and was unhindered as he surged to the line.
Fairyland, a stable-mate of the winner, came home third while Michael Bell's Pretty Pollyanna was fourth.
Moore said: "Aidan had him in tip-top shape, he liked the faster ground and was just a bit rusty at Ascot. The other side were ahead of me, he was a bit babyish and I could have done with some help, but he quickened very well. He's very nice."
BBC racing correspondent Cornelius Lysaght:
Sadly there will never be a 'showdown' between Ten Sovereigns and the now retired dual Royal Ascot sprint-winning Blue Point, but, judged by this, such an encounter would have been intriguing.
After being initially trained as the Coolmore/Aidan O'Brien team's number one hope for the one-mile 2000 Guineas, they changed direction to sprinting after being beaten there, and at Royal Ascot the colt wasn't in what O'Brien described as 'sprinting mode'.
Here, however, he certainly was, and this was an emphatic success. Advertise ran with credit in second, but well-fancied Dream Of Dreams (10th) never got in a blow.