Sacred came with a pulsating charge from the rear of the field to take the BetVictor Hungerford Stakes at Newbury.
Running for the first time since finishing seventh in the 1000 Guineas, the filly stormed home to complete an amazing hour for the William Haggas stable.
The Newmarket trainer took Group races in Deauville with Cloudy Dawn and Dubai Honour before Sacred (6-1) completed a remarkable hat-trick.
Nando Parrado, fired up by first-time blinkers, was soon running freely in front with D’Bai, Dreamloper and Al Suhail close up.
Tom Marquand settled Sacred at the back and was able to weave his way through the pack and get to the lead in the final furlong.
Galloping on strongly, the Cheveley Park-owned three-year-old crossed the line a length clear of Laneqash, with Njord a length and a half away in third.
Haggas’ wife, Maureen, said: “When Ryan (Moore) won the Nell Gwyn on her he said it was liking riding a motor bike.
“We’ve timed her with the latest equipment at home and some of her figures are unbelievable.
“She’s in the City of York, but that is very quick and could undo all the good that’s happened for her break.
“Then there’s the Foret, but she would only go if it stayed dry.”
She added: “She grew two inches through the winter and I hope that after her light season the owners might keep her in training at four.”
Marquand was equally impressed, saying: “It feels there’s been a lot in between her last run in the Guineas and they said she was top class.
“To jump into the race like that was very impressive. She is a very good horse.”