US Navy Flag benefited from a drop in class to run out an emphatic winner of the Group Three Plusvital Round Tower Stakes.
The Aidan O'Brien-trained colt was not disgraced when fourth to Sioux Nation in the Group One Phoenix Stakes on his latest start and made the most of a slightly easier task to put his rivals to the sword.
Leading all the way on the stands rail under Ryan Moore, US Navy Flag (5/4 favourite) pulled clear in the final furlong to strike by six lengths from Landshark. Ball Girl was a neck away in third.
The winner was quoted at 66/1 with Sky Bet for the QIPCO 2000 Guineas at Newmarket.
O'Brien said: "You'd be delighted with him. We were going to go to the Morny and the Gimcrack, but we waited as it was nicer ground here.
"He's a fast horse and he keeps going. I'd imagine he'll go for the Middle Park or something like that. I'd say that's where he'll probably go.
"Good ground is only an advantage. I wouldn't think he's a soft ground horse, as he's a very good mover and he's fast.
"You'd say he's progressed from his last run. He galloped out well there."
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