Wayward Prince rolled back the years as he warded off late challengers to lift the Coral Scottish Grand National at Ayr.
Leading at the third-last fence, the Hilary Parrott-trained 11-year-old dug deep for jockey Robbie Dunne to hang on for glory at 25-1 in the prestigious marathon handicap chase.
Wayward Prince had three-quarters of a length to spare over strong-finishing Irish raider Goonyella (16-1), who made a gallant bid to follow up his victory in the Midlands National.
Benbens (33-1) was a head away third and Amigo (28-1) was fourth.
Wayward Prince was almost retired by connections earlier in the season but earned a reprieve with victory at Doncaster in February and also ran well when third on his only subsequent start at Ascot.
3.45 Ayr - Scottish Grand National result:
1 Wayward Prince 25-1
2 Goonyella 16-1
3 Benbens 33-1
4 Amigo 28-1
5 Catching On 14-1
"It's a dream and he's loved every minute of it," said Parrott.
"He does get looked after like a baby and we all love him.
"He did very well when trained by Ian Williams, then he lost his form and I thought I'd have him. We're a small yard, so he gets a lot of attention. He goes out every day and is very happy.
"I can't believe it. He'd never gone four miles before, but he did fall in the Grand National last year."
Goonyella's trainer Jim Dreaper was delighted with his horse's performance. He is hoping his excellent run will help him earn a place in the Crabbie's Grand National next year after missing out the last twice.
"He showed again he's got great stamina. His lack of pace is just shown up a bit more on that ground, but that was very good," said the County Meath handler.
"The plan is to try to get him into Aintree to beat the ballot. He's missed out two years in a row and maybe he can do it next year."
Ante-post favourite Gallant Oscar was a non-runner due to the drying ground, leaving Broadway Buffalo to go off the 9-1 market leader. David Pipe's charge had every chance before finishing sixth.
Cheltenian (10-1) landed his first success since December 2013 with a hard-fought victory over Sign Of A Victory in the QTS Scottish Champion Hurdle.
It was nip and tuck on the run to the line with the Philip Hobbs-trained Cheltenian just proving the stronger by a neck under Richard Johnson.
Hobbs said: "This has been a fantastic horse. He won the Cheltenham bumper some years ago, but he hasn't won for a bit (since December 2013) and what a time to come back and win.
"He's had mainly tendon problems and had a long time off."
Johnson had earlier struck on Top Gamble (3-1), who bounded clear in the closing stages of the Jordan Electrics Ltd Future Champion Novices' Chase to score by 10 lengths from Seventh Sky.
Puffin Billy (7-2) rallied tenaciously to give the Grand National-winning team of Oliver Sherwood and Leighton Aspell further success in the Weatherbys Private Banking Novices' Limited Handicap Chase.
The Nicky Richards-trained Duke Of Navan (7-2) overcame being hampered at the first fence to run out a clear-cut winner of the Scotty Brand Handicap Chase by six lengths under Brian Harding.
Rascal (3-1 favourite) gave a game front-running display to claim the Ayrshire Hospice Making Today Matter Handicap Hurdle by half a length from Gilt Shadow for in-form trainer Dan Skelton and his jockey brother Harry.
The James Ewart-trained Avidity (7-2) asserted close home for conditional Dale Irving to strike in the Dawn Homes Ayrshire Favourites Racing Excellence 'Hands And Heels' Finale Handicap Hurdle.
