O'Brien, winning his 27th top-level race of the year, said: " He progressed with every run and his level of progression was so good we were afraid to turn him off.
"He was still a little green and he'd been getting better all the time. It was brilliant, he's stepped up again today so it's marvellous.
"It's been a big team effort and we're just a small part. We're so grateful to everybody and we're privileged to be here."
Moore said: " He shouldn't have been 50-1 last time, he's a beautiful horse but he's just been a bit backward.
"The time before the Dewhurst he knocked himself coming out of the stalls, he's a very talented horse.
"Everything went our way today. He's been a bit slow mentally but he was professional today but even when he hit the front he wasn't sure what to do.
"It went well, we had a good draw but it went smoothly because he has the talent to do that.
"I've always thought he was a good horse, especially since the Dewhurst, and although he was stargazing in front, I always felt there was something left in the tank."
Gordon Elliott said of Beckford: "He's run a very good race to get into the money."
George Scott said of James Garfield: "It's such a tight track and we got wiped out early on and were then running into the back of horses but that's the name of the game."
William Buick said of Masar: "I was an unlucky loser, he pecked and the stirrup slipped, he finished very strongly. I've never known that happen in my career. I think he would have won."
