Al Co was a shock 40-1 winner of the Coral Scottish Grand National at Ayr.
Jamie Moore, fresh from his win on Sire De Grugy in the Queen Mother Champion Chase at Cheltenham, steered Peter Bowen's outsider to a famous victory.
But Moore had a scare on the run-in when Al Co spooked and jinked to his right but the partnership was soon back intact.
Last year's winner Godsmejudge (16-1) was a gallant second, a length and a half away, with Trustan Times (10-1) just a neck back in third and Merry King (50-1) fourth.
Moore said: "Peter told me he had him spot on, but twice up the run-in he spooked at boards or something.
"It's the first time he's run for a while and I'm delighted to ride a big winner for Peter."
Bowen said: "He was in the best form we've ever had him.
"Luckily, we've got Ffos Las up the road and he had a racecourse gallop there and he was absolutely spot on for today.
"I didn't see what happened on the run-in. I'd got four horses to watch and it was a job to keep an eye on them all.
"It's fantastic to win this race."
Alan King was chuffed with the performance of Godsmejudge.
He said: "I'm very proud of him. We said all the way through it's been a very difficult preparation.
"He's only just coming back and that was a mighty run. He'll have a summer out and regroup for next year. That was awesome."