New London was promoted into St Leger favouritism following a resounding success in the John Pearce Racing Gordon Stakes at Goodwood.
Seen as Godolphin's premier Derby horse before disappointing at Chester, his career is now well and truly back on track.
Successful in handicap company at Newmarket last time out, the Dubawi colt was back up in grade for this Group Two – which was run at a strong gallop thanks to the exploits of West Wind Blows and Al Qareem.
Briefly William Buick was a bit tapped for toe as the speed increased three furlongs out, but as the front runners started to tread water New London and Derby runner-up Hoo Ya Mal were left in front.
Ryan Moore dropped his whip on Hoo Ya Mal, but it made little difference as the 6-4 favourite pulled clear. Deauville Legend, winner of the Bahrain Trophy, pipped Ho Ya Mal for second.
The winner is now no bigger than 7-2 for the final British Classic of the season, which his trainer Charlie Appleby won last year with Hurricane Lane.
"He went from winning a novice at Newmarket to being Derby favourite which takes a bit of doing, but at Chester it just didn’t happen," said Buick.
"Yes, the ground was bad and that was a factor, but Charlie has done a great job in bringing him back.
"New London has achieved more than Secret State (Wednesday’s winner who is also in the St Leger). That was a deep Gordon field with the Derby second. He has passed the test and Secret State is up and coming – let’s see if he can do it."
Alex Merriam, Appleby’s assistant, said: "He’s done nothing, but improve. It wasn’t the greatest run in the trial, after which Charlie felt he should miss the Derby.
"He’s not in the Voltigeur, so we will let the dust settle and see how he is next week before making a plan.
"Of our Leger horses he’s the only one that’s won a Group race while the others have won handicaps. He’s also a Dubawi, and they tend to improve."
George Boughey, trainer of Hoo Ya Mal, who has the ultimate aim of the Melbourne Cup, said: "It was good. Hoo Ya Mal was a work in progress. He has to try to run two miles in the Melbourne Cup and that is his aim at the end of the year. Ryan Moore was happy, Gai Waterhouse (next trainer) was happy and he is still learning.
"He was raw going into the Derby and he still raw now. I think New London was highly thought of in the spring and Deauville Legend is a good horse – that is a high level of form.
"Ryan did touch on losing his whip. He is a horse who needs encouragement, he has run a gallant race, especially without any help probably in that sort of level. Ryan was happy and he has lots of maturing still to do."
Royal Scotsman (5-6F) confirmed himself a smart performer as he justified favouritism with a clear-cut success in the Richmond Stakes.
Trained by Paul and Oliver Cole, the son of Gleneagles was heavily backed all day to see off some promising juveniles.
Royal Scotsman had the best form in the book having finished third in what is looking a very strong Coventry Stakes at Royal Ascot, with the second from that race, Persian Force, coming out and winning the July Stakes.
With two furlongs to run Jim Crowley moved his Jim and Fitri Hay-owned mount between horses and in a matter of strides he had put the race to bed.
Al Karrar stuck on nicely for second, beaten a length and a half behind Royal Scotsman, who set a new course record.
Crowley said: "Royal Scotsman had the best form in the book. His Coventry form has worked out well and he was unlucky in the Coventry as I was drawn one and got a bump.
"He has a lot of speed and he could be a horse for the Prix Morny. He is physically strong and has lots of speed. The more he learns to relax, he will be able to go further."
Paul Cole said: "Our only worry was getting some cover because at Ascot he saw too much daylight. But it all went as we hoped, in fact it couldn't have gone better.
"In the first three furlongs he was settled and switched off. Then he used his turn of foot. I admit that before the race I couldn’t contemplate defeat for him."
Charlie Appleby once again dominated the opening race on the card, with Warren Point (9-2) just getting up to deny stablemate Blue Trail in the Coral Kincsem Handicap.
Appleby fielded three in the near-10 furlong contest with William Buick on Warren Point, James Doyle on the top-weight Natural World and Frankie Dettori partnering Blue Trail.
Yet it was Dettori on the seemingly third-string Blue Trail who went clear with a furlong to run, looking like he had stolen it.
Buick burst out of the pack to chase him down, though, and the Great Voltigeur entry prevailed by a neck with the pair three and a quarter lengths clear of the beaten favourite Migdam.
Assistant trainer Alex Merriam said: "It was nice that they both ran pleasing races.
"Warren Point has only had three races and was a bit keen last time. He was really impressive, and William gave him a lovely ride.
"I spoke to Charlie and he mentioned stepping him up to a mile and a half. He’s in the Great Voltigeur, which is a possibility.
"Blue Trail also ran well. It looks like the gelding operation has benefitted him."
Hollie Doyle and Michael Dods teamed up for the first time to great effect with Prairie Falcon (14-1) in the Jaeger-Lecoultre Nursery Handicap.
Dods, who won last year's Stewards’ Cup with Commanche Falls, and Doyle, who won the Nassau Stakes earlier on the card with Nashwa, did not look to have great prospects of adding to their Goodwood tallies.
But the three-race maiden relished the step up in trip, sticking on gamely to beat XJ Rascal by a head.
Clive Cox’s Get Ahead (7-1) came with a powerful run down the usually unfavoured middle of the track to win the five-furlong World Pool Handicap.
Sixth in the Queen Mary last season, she had been out of luck in five outings this campaign but returned to winning ways under Adam Kirby.
Jonny Peate thankfully escaped serious injury when his saddle slipped on Sophie’s Star.
Richard Hughes appears to have a potentially very nice filly on his hands in the shape of Sparkling Beauty (7-2JF), given the way she won the Tatler EBF Maiden Fillies' Stakes.
Second on her debut at Newbury when the winner had previous experience, the daughter of Oasis Dream had clearly taken a good step forward.
Ridden confidently by Rossa Ryan, she hit the front well over a furlong out but there was never any danger of her folding under pressure as she beat She’s Hot, not disgraced in the Albany last time out, by three and a half lengths.