Keith Mitchell sank a 15-foot birdie putt on the final hole to win The Honda Classic for his first PGA Tour victory.
Mitchell closed with a 3-under 67 to finish at 9-under 271 at PGA National, a stroke ahead of Brooks Koepka and Rickie Fowler.
Mitchell was tied for the lead after 36 holes, and was tied for second going into Sunday.
He birdied four of his final seven holes for his first win as a pro, including stints on the Web.com and Latinoamerica tours.
Ryan Palmer fired a 63 to finish in a fourth-place tie with Lucas Glover at minus-7.
Vijay Singh settled for sixth after starting in the final group on Sunday.
The 56-year-old Singh was trying to become the oldest winner on the PGA Tour.