Alan Swinbank’s charge was forced to carry a 7lb penalty for that Group Two win but it failed to stop her as she came home a length and three-quarters ahead of Green Room.

La Spezia tried to blaze a trail in the mile-and-a-half contest but fell in a heap over a furlong out, after which Green Room took it up before being worn down herself by Swinbank’s blossoming star, who ran on for a 6-5 success.

Formerly a progressive performer on the National Hunt bumper circuit, the unbeaten daughter of Turbo Speed was completing a hat-trick on the Flat.

North Yorkshire trainer Swinbank said: “I nearly put her in the Yorkshire Oaks before she set foot on a racecourse – people would think you were crackers if you did that!

“But she has always been a good and tough filly, always shown ability at home.

“Every race is a worry – there has been all the hype about the horse – but she has come good again. It is marvellous for all concerned.”

Swinbank revealed a lack of suitable options forced him to step back in grade to Listed level.

And with the Group Two Prix de Pomone on August 5 at Deauville on her agenda, Swinbank was keen to give her further racetrack action before then.

He said: “I went through the calendar and there wasn’t a lot for the horse, but I wanted to get another run into her before the Deauville race.”

The Stockholm Cup on September 9, which Swinbank has won twice with Collier Hill, could also feature on her agenda and he is keeping options open regarding a possible Yorkshire Oaks tilt on August 22.

He added: “We would have to supplement her for the Yorkshire Oaks, but I don’t know about that.”

John Gosden’s two-year-old team have been in encouraging form of late and Legislation (15-2) emphasised the point in the Unicorn Asset Management July Course Series Maiden Stakes.

The Oasis Dream colt reined in Calmdownmate inside the final furlong win by half a length in the hands of Jimmy Fortune.

Gosden said: “That was a nice performance – he did it well. I said before that he had been working well but that the race would bring him on as he wasn’t wound up.

“We will now go down the novice or conditions’ race route.”

Bee Eater (5-2 favourite) maintained her progressive profile in taking the Invesco Perpetual EBF Fillies’ Handicap by a length and three-quarters from China Cherub.

The Sir Mark Prescott-trained filly has now won three of her four races and will next go in search of some ’black type’ on the continent.

Prescott said: “She is a home-bred of Sir Edmund Loder’s and is the 13th generation from Pretty Polly.

“The owner is three generations from the breeder of the Pretty Polly. There is probably no other breeder who has got the same family 110 years later.

“This filly is quick. I trained the dam (Littlefeather), who was third in the Moyglare. She probably goes for a fillies’ Listed race in Germany.”

Her rider Seb Sanders was completing a 14}-1 double having ridden Al Khaleej (7-2) to victory in the Coolus Air Conditioning Handicap.

He got to Annemasse entering the final furlong and shot away to triumph by two lengths.

Bruce Raymond, representing the winning owner Mayoof Sultan, said: “Seb was very pleased and felt he settled better here than Goodwood where he hung.

“He didn’t do that here and we will probably keep him at a mile, which suited him. You would hope there is still quite a bit of improvement in him.”

Trainer Ed Vaughan was delighted to see the three-year-old Medicea Sidera (11-4 favourite) get off the mark in the opening seven-furlong Lettergold Plastics Maiden Stakes.

She had a couple of previous seconds to her name and probably found herself on the wrong side when finishing sixth over the course and distance recently.

Vaughan said: “She is a very consistent filly and was unlucky last time when she was drawn on the wrong side.

“I’m going to give her a month off now.”

Nobelix (6-1) returned to the winner’s enclosure for the first time in a year after reaping the benefit of a fine ride by 5lb claimer William Buick to secure the Duke Grime Memorial Handicap.

The concluding Turf TV handicap went the way of Ishi Adiva (14-1), who came late to snatch a short head verdict over Tony The Tap.