The champion jockey was obviously helped by the willingness of his respective winners, Rainfall and Strawberrydaiquiri, but his tactical brilliance shone particularly with his ride on the latter.
Sir Michael Stoute’s grey Strawberrydaiquiri (9-2) had only lost on two of her previous seven starts but in a race with no obvious leaders, Moore jettisoned the usual arrangements of holding her up in favour of making the running.
They looked up against it a couple of furlongs out as Johnny Murtagh and last year’s winner Spacious appeared to be going much better.
Unfortunately for James Fanshawe and Spacious, Strawberrydaiquiri refused to relinquish her lead and just a short head separated them in a battle to savour over the final quarter of the race. Godolphin’s 7-2 favourite Antara was third.
“Ryan was very clever to do what he did because we would have loved a lead, that’s how we’ve always ridden her,” said Stoute.
“He grabbed the initiative and she showed her tenacity.
“We usually ride her dropped in, but Ryan was worried about getting pace so he wanted to lead. The next step will be 10 furlongs.”
This was a poignant moment for owner Renata Jacobs, whose husband Klaus died a couple of years ago.
Moore added of Strawberrydaiquiri: “She has tried very hard all her life. They were getting very close and I couldn’t get into her, but when I did ask her she found a little bit more.”
Fanshawe, who also trained fourth-place Alsace Lorraine, said: “I’m very proud of Spacious and it was a hell of a battle.
“I thought we were getting the upper hand with half a furlong to run but the other horse got the upper hand at the line.”
It was quite a performance too from Rainfall (8-1), a callow filly with two previous runs to her name who marched into combat against a field of experienced colts.
In the end, however, she ended up breaking the seven-furlong course record by nearly a second.
Trainer Mark Johnston, one of the most successful of all Royal Ascot trainers, snapped up Moore as a statement of intent and the gamble paid off.
Michael Hills aimed to replicate his front-running ride aboard Equiano on Tuesday with Red Jazz but they held on only to the distance before Moore joined alongside and eventually edged it by a head.
Sheikh Mohammed had owned the last filly to take the Jersey, Satin Flower in 1991, and Rainfall also belongs to the ruler’s family.
Johnston said: “Sheikh Mohammed was just saying it was a good race for fillies but I hadn’t realised that.
“I’d looked at the race over the last five years and thought this was a tall order, but she’s done nothing wrong since she came to us.
“It was quite a big jump from a maiden to Listed to this but she’s very straightforward and has still not come in her coat.
“She has quite a few entries, most of them foreign.”
The Sheikh was able to toast more success in the blue colours of Godolphin as Invisible Man gave Frankie Dettori his first winner of the week in the Royal Hunt Cup.
Godolphin’s last resort had been to try the chestnut in blinkers and he lived up to his name by sneaking through on the far side of the field unnoticed by both his rivals and the punters, as he was a 28-1 chance.
Racing manager Simon Crisford said: “You couldn’t say we fancied him, but you have to say the blinkers have made the difference today”