Ryan Moore completed a 63-1 treble on day two of Newmarket's July Festival aboard Integral in the Falmouth Stakes.
The 15-8 favourite coped well with the testing ground in the Group One contest to win by two lengths from Rizeena.
On Saturday, Royal Ascot winner Slade Power is favourite in the July Cup (15:50) for Irish trainer Eddie Lynam, with Noozhoh Canarias among rivals.
Frankie Dettori rides Undrafted, owned by American Football star Wes Welker, a wide receiver for the Denver Broncos.
On Friday, three-time British jockey Moore won the first two races with Nakuti (7-2) and Arabian Queen (4-1), before pouncing with Integral.
"She's improving and hopefully will continue to get better," said Moore of Sir Michael Stoute's winning filly.
|Integral: Winning run|
|Age: 4 Runs: 8 (Ryan Moore has ridden her in all her races)|
|Wins: 5 2nd: 2 Unplaced: 1|
Integral, owned and bred by Cheveley Park, won the Duke of Cambridge Stakes at Royal Ascot last month.
And she got the better of another Ascot victor, Coronation Stakes winner Rizeena, trained by Clive Brittain.
Stoute indicated afterwards there was an outside chance Integral may take on the colts in the Sussex Stakes at Glorious Goodwood on 30 July.
Irish challenger Peace Burg, ridden by Jamie Spencer for Aidan O'Brien, ran well in third but last year's runner-up Sky Lantern disappointed again after her fifth place at the Royal meeting.
Certify, a contender for last year's 1,000 Guineas before being banned from running for six months after being doped in the Godolphin scandal, finished down the field.