Holywell broke a frustrating run of second place finishes where it mattered most when holding on to win the Pertemps Final at the Cheltenham Festival.
Trainer Jonjo O'Neill was opening his account for the week and he was steered to victory by Richie McLernon, who would not have been able to believe how well he was going turning into the straight.
He joined the hard-ridden Berties Dream and scooted five lengths clear but Captain Sunshine was staying on from the rear to throw down a challenge.
The 25-1 shot idled a little in front but not enough to enable Captain Sunshine to finish anything better than a length and a half down at the line.
Jetson was third and the winner's stablemate, Shutthefrontdoor, in fourth.