Bernd Wiesberger won his maiden European Tour title at the Ballantine's Championship in South Korea by five shots from Scotland's Richie Ramsay.
The Austrian birdied three of the last four holes to finish on 18 under, ahead of Ramsay who shot a seven-under 65 to catapult himself up the leaderboard.
It marked Ramsay's best result since winning the South African Open in 2010.
France's Victor Dubuisson fired a 66 to move up to third alongside Australian Marcus Fraser (70) on 11 under.
Wiesberger had begun the day with a five-shot lead and he punctuated a solid opening nine holes with a birdie on the par-five fifth before rounding off the tournament in style with birdies on 15, 16 and 18.
The 26-year-old, who did not drop a shot in his final three rounds, said: "I tried not to make bogeys and I did that pretty well, it was awesome.
"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 the last three or four holes in."
England's Anthony Wall shot a five-under 67 to move into a tie for fifth with Spaniard Miguel Angel Jimenez.
Wall's compatriot, Ross Fisher, closed with a 66 to finish joint seventh alongside the Republic of Ireland's Ireland's Paul McGinley.