Daniel Berger became the fourth player to retain his Memphis title when he won the St Jude Classic in Tennessee on Sunday.
The 24-year-old’s one-shot victory saw him follow in the footsteps of back-to-back winners David Toms, Dave Hill and Lee Trevino, after the American claimed his maiden PGA Tour title at this tournament last year.
Berger produced four birdies in his immaculate four-under-par 66, matching his round on Saturday, to finish ahead of Charl Schwartzel and Kim Meen-whee on 10 under.
A birdie on the 15th saw him move clear of the pack, which at one point included nine players tied for the lead, but he was made to wait for his win to be confirmed as Rafael Cabrera Bello continued his final round.
Yet the Spaniard, joint overnight leader, failed to make up the ground, meaning Berger could celebrate his second PGA Tour victory.
Cabrera Bello was one of five players to finish two shots behind Berger, along with Americans Billy Horschel, Braden Thornberry, Chez Reavie and Kevin Chappell.
Phil Mickelson was seven-under par, one shot ahead of Adam Scott, Stewart Cink and Ben Crane among others.
Cink, level overnight with Cabrera Bello and Crane on nine under, was out in front and setting his sights on a first PGA Tour title since 2009 until he ran into trouble on the back nine.
The American, playing only his second PGA Tour tournament back since taking a sabbatical to care for his wife who has cancer, suffered bogies on the 10th and 15th and a double on the 11th to slide out of contention.