One Master swooped fast and late to win the Saint Clair Oak Tree Stakes at Goodwood.
Tom Marquand's partner was sent off the 6/4 favourite but looked in trouble when fenced in by the rail two furlongs out and by the time she found daylight, Valeria Messalina (12/1) had booted clear under Frankie Dettori.
There was no panic from the saddle though and William Haggas' charge produced a fine turn of foot to hit the front in the very last stride.
"I was lucky to be on an exceptional filly. She's a dual Group One winner and William said beforehand the best ground was down the inside and to really play it as a Goodwood ride," the winning rider told ITV Racing.
"It's always a buzz when it comes off like that but a day like this it's even more special. She was pretty exceptional, she didn't enjoy the ground and still produced a turn of foot like that."
"That's our 30th winner in July so I get all the glory and everyone else does all the work!" smiled the winning trainer.
"I had a walk round this morning and thought it was too firm for her but there's a beautiful strip of ground down to the three from the start with a little give in there. I hoped with her class, drawn one, she'd be able to go round on the bridle to there. It's much quicker up the straight and I was fearful of that and I won't be totally relaxed about it until I see her tomorrow.
"She's a really genuine filly with a terrific turn of foot in this company. If everything had been right she had an outstanding chance. The Foret is the plan. We'll probably go to York now for a Group Two race and then ParisLongchamp."
Haggas and Marquand completed a big double when Pablo Escobarr (9/2) knuckled down well to win the Group Three L'Ormarins Queen's Plate Glorious Stakes.
11/4 joint-favourite Desert Encounter looked a huge threat when looming up to challenge on the bridle but was readily repelled, the winner a length clear at the line.
Le Don De Vie was third under Oisin Murphy having struggled to find racing room.
"We've always felt there was that little more to go to with this horse and today we changed things up and rode him with a touch more patience," the winning jockey said. "It paid to fill him up on the way round and get him enjoying it again."