Kevin Na produced a fine putting performance as he ran away with a five-shot win at the Greenbrier in West Virginia.
-19 Kevin Na
-14 Kelly Kraft
-13 Brant Snedeker Jason Kokrak
-12 Joaquin Niemann, Austin Cook, Joel Dahmen, Sam Saunders, Harold Varner
Day four report
Some superb putting led to Kevin Na winning the Greenbrier by five shots, his first title since 2011.
The 34-year-old enjoyed a strong final day in West Virginia to finish well clear of the field on 19-under-par.
Na birdied the fourth, fifth, eighth and ninth holes to head into the back nine already in pole position to win just his second PGA Tour event.
A final round of 64 was more than enough to see off the challenge of United States countryman Kelly Kraft, who finished his last round on 70 to end up on 14 under.
Kelly dropped a shot on the front nine before further bogeys on the 14th and 17th.
Two more Americans rounded out the top positions as Jason Kokrak and Brandt Snedeker tied for third, a shot behind Kraft.
Phil Mickelson finished well down the field, tied for 65th, as he again courted controversy on his return to action following the US Open.
The American was handed a two-shot penalty at Shinnecock Hills after deliberately hitting his moving ball to avoid a more difficult shot.
Plenty called for him to be disqualified in New York but the penalty was seen as punishment enough - and he took the same penalty at White Sulphur Springs.
This time round the issue seemed much more black and white than at the US Open, Mickelson consulting with an official after tapping down a patch of long grass at the seventh.
He called the two-shot penalty himself for falling foul of rule 13-2: 'Improving Lie, Area of Intended Stance or Swing, or Line of Play.'
The 48-year-old was already struggling to challenge the leaders, starting the day nine shots off the pace.
Day three report
A sloppy finish from Kelly Kraft saw him end the third round of the Greenbrier tied for the lead in West Virginia with Harold Varner.
Kraft missed the chance to take a solo lead into the final round as the American dropped his only two shots of the third round on the 16th and 18th, which left him 14-under-par alongside compatriot Varner.
Varner parred his first 10 holes of the day before picking up shots on the 11th, 12th, 14th and 17th.
Kraft, who like Varner is chasing a first PGA Tour title, had led by a shot going into the round, with American Webb Simpson and India's Anirban Lahiri his closest challengers.
Lahiri is now three shots off the pace after posting a one-over 71, but Simpson's challenge appears to be over after he dropped six shots in his 76, including a double-bogey on the 17th.
Xander Schauffele and Kevin Na are both a shot off the leading duo, while two-time major winner Bubba Watson is three shots back after posting a five-under 65 on Saturday.
Day two report
Kelly Kraft grabbed a narrow one-shot lead from Anirban Lahiri and Webb Simpson after a second-round 63 put him at the top of the Greenbrier leaderboard.
The 31-year-old finished strongly with three birdies in his last six holes to lead from Lahiri and first round leader Simpson in his pursuit of a first ever PGA Tour win.
Lahiri carded a career-best round of 61 while Simpson hit a three-under 69 to remain as one of the title chasers at West Sulphur Springs.
"I've kind of changed my attitude a little bit starting with last week," Kraft said. "I've been up there before and I know I can play out here."
Day one report
Webb Simpson made a flying start at the Greenbrier as he hit a tremendous bogey-free round of 61 to take a one-stroke lead after the first round.
The American went out in 31 with three birdies, then hit a birdie-birdie-eagle on his way to a round of nine under.
South Korean Whee Kim is a shot behind at West Virginia, followed by Chilean Joaquin Niemann on seven under.
Simpson sliced in an 18-foot chip on the par-5 12th for eagle and told the PGA Tour website: "I'm feeling really good and confident.
"Putts are going in and so I feel really good about my game."
American Kelly Kraft sits fourth on six under, while four Americans follow a shot behind and 15 a shot further back including Phil Mickelson.
Seamus Power of Ireland went round in an even 70 and is tied for 88th.