Rory McIlroy came close, but the Genesis Open crown ultimately belonged to JB Holmes on a dramatic final day in California.
The Co Down man handled inclement conditions and rose into second with Justin Thomas late on Sunday afternoon, but he slipped back into fourth by the close of play.
American Holmes rallied from a from a four-shot deficit as the weather-blighted tournament drew to a close.
He picked up two shots and dropped one on the way out before carding a birdie and a bogey as he headed back to the club house.
The one-under 70 saw him at 14 under for the tournament, one shot ahead of Thomas who had led for a time, and sealed his fifth PGA win.
McIlroy carded a 69 to finish on 11 under overall, while further down the leaderboard Tiger Woods tied 15th after carding 72 (six under overall) and Englishmen Paul Casey and Tommy Fleetwood finished tied 25 and tied 28th respectively (five and four under).