Charlie Hills finally ended a frustrating wait for his first British Group One winner as the unheralded Chriselliam came good in the Shadwell Fillies' Mile at Newmarket.
Carrying the yellow and blue colours of music mogul Chris Wright but partly owned by eminent former jockey Willie Carson, the 28-1 chance only had a Warwick maiden success to show from her four previous starts.
Hills, whose father Barry had an association with Carson himself, is only in his second full season as a trainer and his week could get better yet with Kiyoshi and Just The Judge challenging at the top level on Saturday's card in the Cheveley Park and Sun Chariot Stakes respectively.
Champion jockey and current title leader Richard Hughes, who was on an unusually long losing streak of 35, took a pull and then brought Chriselliam through from last to first after monitoring the stop-start pace cut out by Irish runners Ballybacka Queen and then Avenue Gabriel.
Just as Clive Brittain's 7-4 favourite and Moyglare winner Rizeena moved into position to add this event to her haul entering the final furlong, her rider James Doyle had Chriselliam appearing out of the corner of his eye and she strode past the post a length ahead.
"The one thing I haven't done is own a Classic winner - I've ridden one and I've bred one," said Carson.
"It wasn't a surprise. She's a filly that Charlie has always felt was a good filly and while she's never worked with Kiyoshi, he has always said she's as good as her.
"She went to Deauville and we were so disappointed, we didn't know what happened there. Maybe she should have won at Haydock last time, she didn't like the bends and perhaps hit the front too soon.
"We had 'mr sit still and wait' riding today and Hughesie did a great job. He slightly disobeyed orders and was further back than I told him and obviously I'll give him a pat on the back for that!"
Hills has proved more than able with fillies, although he admitted "we just need some colts now", and he can afford to view next year's Classics with enthusiasm.
"It's a dream," he said.
"We've always loved her from the day she came to the yard. She's got such a big stride and things just hadn't really gone right for her.
"She broke the track record at Warwick then we took her to Deauville and for whatever reason she ran flat that day, so we were scratching our heads.
"But she's been working great and I was actually looking forward to today.
"We'll see how she comes out of the race. We'll have a look at the Breeders' Cup, but otherwise we'll prepare her for the Classics next season. She's got plenty of size and scope."
Brittain, the popular and venerable Newmarket trainer, was clearly deflated by the defeat of Rizeena but refused to make excuses.
"She was beaten by a better horse on the day," he said.
"Maybe a bit of ease in the ground would have helped but it hasn't made the difference. We've come through and won the race, but then the other one has come past."
Godolphin trainers were looking to secure the race for the fourth consecutive occasion following White Moonstone, Lyric of Light and Certify but the team could manage no better than third, with May Hill winner Ihtimal doing her best work at the end but still two lengths behind Rizeena.
Trainer Saeed bin Suroor said: "She got beaten by better fillies today. There's no plans for her and we'll keep our options open. We'll look for races over seven furlongs and a mile."