Sapphire Seas played a starring role in a Yarmouth four-timer for Charlie Appleby and William Buick, securing a dominant victory in the EBF Stallions John Musker Fillies’ Stakes.

The Moulton Paddocks team appears to be hitting form with a vengeance ahead of the crucial final weeks of the season, highlighted by Grade One success in Canada last weekend courtesy of Master Of The Seas.

Having already struck gold with a pair of promising juveniles on the undercard in Romantic Style (6-4) and Edge Of Blue (7-2), Sapphire Seas was a 9-2 shot to complete her four-timer in the Listed feature after following up successive all-weather wins with a successful turf debut at Haydock.

The daughter of Frankel took the step up in class in her stride, travelling strongly throughout under a confident Buick before extending two and a half lengths clear of Mukaddamah.

Infinite Cosmos emerged with credit in third on her first start since occupying the same position in the Musidora Stakes at York in May, but 10-11 favourite Al Asifah was disappointing in her bid to bounce back from a similarly underwhelming performance at Royal Ascot.

Of the winner, Buick told Sky Sports Racing: “It was a very smart performance. She won nicely last time at Haydock in a fillies’ handicap and she’s certainly stepped up on that.

“She’s going to keep improving hopefully. I would say the team will be delighted with what they saw there and hopefully she’ll be around for next year.

“This is a nice race, a lovely race for fillies. Let’s hope she can go on to better things.”

Appleby and Buick’s fourth winner of the day was provided by First Sight (11-2) in the nine-furlong handicap.

Royal Ascot disappointment Al Asifah bids to get her season back on track in an intriguing renewal of the EBF Stallions John Musker Fillies’ Stakes at Yarmouth on Wednesday.

Following an emphatic victory on her racecourse debut at Haydock in May, the daughter of Frankel made a huge impression in a Listed event at Goodwood the following month, prompting connections to stump up the supplementary fee to add her to the Ribblesdale Stakes just 11 days later.

The gamble failed to pay off, though, with John and Thady Gosden’s youngster finishing a well beaten sixth behind subsequent Yorkshire Oaks and Prix Vermeille heroine Warm Heart and she has since been given an extended break to recover from her exertions.

Angus Gold, racing manager for owner-breeders Shadwell, said: “We gave her a nice break after Ascot and she seems in good form, so it will be very interesting to get her back on the track.

“Until she disappoints again, I would say it all just came a bit quick for her in the Ribblesdale. Lots of clever people said she didn’t stay the mile and a half, but for me that wasn’t what got her beaten as she wouldn’t have won at a mile and a quarter either.

“I just think she was very flat on the day. She’s a big, immature filly and while she’s not temperamentally unsound, I think everything just got on top of her a little bit (at Ascot).

“I’m sure she’ll be better in time and we hope she does well enough that we can keep her in training next year.”

Al Asifah faces a far from straightforward task, with Sir Michael Stoute’s Infinite Cosmos making her first competitive appearance since finishing third in the Musidora at York in the spring, while Sapphire Seas is stepped up in class by Charlie Appleby having won her last three starts.

Gold added: “It always is a good race this and a great race to have on the calendar. You have fillies coming back from little niggles and different things, so it will be a good test for her.”

The Shadwell colours will also be carried by Roger Varian’s Mukaddamah, who has been placed in Listed company before – but Gold acknowledges this is a tough assignment for the grade.

He said: “She’s a nice, solid filly and we’ve been trying to win a Listed race with her.

“With the other filly in here I wouldn’t expect her to win this, but we don’t have many options as she doesn’t really like soft ground, so I think they just felt this was the obvious race for her.”