Trainer John Berry looks to have found a bargain buy in Hope Is High after she formed part of a 230-1 four-timer for jockey Silvestre de Sousa at Great Yarmouth.
Picked up for just 800 guineas by the Newmarket handler's wife Emma at Tattersalls last February, the four-year-old justified her position as 7-4 favourite with a two-and-a-half-length success in the Haven Seashore Holiday Park Handicap.
Berry said: 'I think I was away at the races and Emma went and looked at this Sir Percy filly.
'She'd had three runs (for David Simcock) and her form was very modest, but Emma said she would like to try and buy her. Emma tentatively bid 800 guineas, which was the opening bid, and bought her.
'Last time she was interfered with by the winner and before that she was drawn out wide.
'There are so many things that can go wrong in racing, but to watch a race like today's, where at every stage everything happens to go right, is a rare pleasure.
'We are a small stable and for a stable like us this filly is worth her weight in gold.
'She is entered at Windsor on Monday and I made the entry in case she won well or ran well in defeat.'
De Sousa's haul was initiated by Viscount Loftus, who earned a 25-1 quote with Paddy Power for the Norfolk Stakes at Royal Ascot after beating 1-3 favourite One Minute by a nose in the British Stallion Studs EBF Novice Stakes.
The race was won 12 months ago by subsequent Windsor Castle winner Ardad.
De Sousa said of the Mark Johnston-trained 7-1 winner: 'Mark has done very well with his two-year-olds and he was very professional there.
'He was a bit gassy early on. It was his first time on the track and he has done it the easy way.
'He did find for pressure but I was going top gear from the gates.'
Form figures suggested that the turn of Daira Prince (2-1) was not far away and so it proved as the Roger Varian-trained three-year-old defied top-weight to give De Sousa winner number three in the Seadell Shops & Holiday Chalets Hemsby Handicap.
The Brazilian rider completed his four-timer aboard the William Haggas-trained Selection (5-2), who benefited from a return to forcing tactics in the Follow Us On Facebook At Yarmouth Racecourse Handicap.
Assistant trainer Harry Eustace said: 'It was pretty straightforward and moving him back to the tactics he used when he won at Kempton has made the difference.
'He was quite slow away but he still got to the lead. He kicked halfway up the straight but saw it out well.'
Having saddled Swiss Cross to claim glory in the Jersey Bullet at Les Landes on Sunday, trainer Phil McEntee enjoyed a winner closer to his Newmarket base after Justice Rock (14-1) came good at the 38th attempt in the Injured Jockeys Fund Handicap.
'It was the first time he wore the tongue-tie and it has taken the trainer 30-odd races to find that out,' said McEntee.
'That has made the difference but he has been unlucky on several occasions.
'He always works well and that is why we have persevered with him. David Egan is a star taking 5lb off his back.'
In The Spotlight was a 9-1 winner of the ROA/Racing Post Owners Jackpot Fillies' Handicap for trainer Henry Spiller and apprentice Cameron Noble.
Lunar Deity (9-4) gained his first win on turf since 2013 with an emphatic 10-length victory in the concluding Ladies Night At Yarmouth Racecourse Apprentice Handicap.
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