Australian Lucas Herbert survived blustery weather conditions and a strong challenge from Patrick Reed to claim his maiden PGA Tour title with victory at the Bermuda Championship, while Graeme McDowell and Seamus Power finished in a tie for 12th.
The 25-year-old, who went into the decisive day four shots off the pace, kept his cool in howling wind and rain to finish 15 under par following a final round of 69.
American Reed charged up the leaderboard on Sunday but his impressive six-under 65 left him agonisingly short, a single stroke behind the champion and tied for second with New Zealand's Danny Lee.
Fourth-placed Patrick Rodgers was a shot further back while overnight leader Taylor Pendrith spectacularly fell out of contention.
Canadian Pendrith surrendered a three-shot advantage to finish joint fifth alongside Scott Stallings after three bogeys and a double bogey left him five over on the day and 12 under overall.
Former US Open champion McDowell and Power finished in a five-way tie for 12th on 10 under.
McDowell carded a final round 70 as the Northern Irishman ended five shots behind Herbert and level with Waterford native Power who finished strongly with a 67.
Testing weather conditions prompted the action to be temporarily suspended, with players forced to kneel down and shelter while holding onto their umbrellas.
Tournament winner Herbert previously triumphed twice on the European Tour.
Those victories came at the 2020 Omega Dubai Desert Classic, when he won in a playoff against South Africa's Christiaan Bezuidenhout, and the 2021 Dubai Duty Free Irish Open