Starting his round with a five-stroke cushion, the 26-year-old signed off with a bogey-free four-under-par 68, playing his last 59 holes at the Blackstone Golf Club in Seoul without dropping a shot to finish on 18-under for the tournament.

Richie Ramsay, who closed with a 65, did manage to reduce the gap to three shots at one stage but never really posed a serious threat to the runaway winner, who had previously finished second twice last season.

“I just tried to enjoy it and I had the three best rounds of my life,” Wiesberger told reporters.

“I tried not to make bogeys and I did that pretty well, it was awesome. My game plan was to hit as many greens as possible and try to make putts, and they dropped in the end.

“I didn’t get nervous, I had three or four shots. There was a pretty shaky moment at 12 but I made a great chip and a putt for par, but I just tried to enjoy it the last three or four holes in,” the Austrian added.

Ramsay sunk his sixth birdie of the day at the 16th to close the gap to three but the leader was unperturbed.

Wiesberger came up with a glorious pitch at the 15th to eight feet, holed a 20 footer at the next and sunk a 15-foot birdie putt at the last to seal the title.

“I played with him a few times on The Challenge Tour and he’s a top-class guy,” Ramsay said.

“If you’re going to get beat by somebody, it might as well be Bernd because he’s a good guy,” the Scot added.

Australian Marcus Fraser finished tied third at 11-under, one shot ahead of Ryder Cup veteran Miguel Angel Jimenez.

Adam Scott fired his best round of the week yesterday, a seven-under par 65, but it was not enough to lift the world No. 12 into the top 10 at the Ballantine’s Championship.

The Australian who was the highest ranked player in the field could not hide his disappointment despite his final-day flourish which left him in a tie for 12th on 280, eight-under par.

“Well, it’s quite disappointing really,” he said.

“After playing quite a good round on Thursday, which was the tough day, I played my way right out of it on Friday,” Scott added, referring to his 76.

“It is some consolation to put together a nice weekend,” he added. “You can always take some confidence from playing well. It’s better than battling around for nothing special.

“Nice to be able to make some birdies, hitting some good shots and I’ll take that stuff with me back to the States and hopefully put four days together at my next outing.

“It’s a good time to be starting to play good and make the most of the summer. Three majors left this year and the Players Championship among others. There’s lots still to play for.”