American Gary Woodland claimed his third PGA Tour title with victory at the first play-off hole in the Waste Management Phoenix Open in Arizona.
The 33-year-old world number 53, three off the lead going into the final round, carded nine birdies in a seven under 64 to finish 18 under.
Compatriot Chez Reavie birdied the final two holes to force a play-off but then bogeyed the first extra hole.
Rickie Fowler, one ahead overnight, returned a 73 and was six adrift.
Scottsdale resident Reavie built a two-shot advantage after an eagle and birdie in his first five holes.
At the sixth his ball was buried in a bunker and he could only advance it across the green into thick rough, but from there he chipped delicately into the cup for a par.
But he was joined at 16 under by Woodland, who had five birdies in his opening nine and then added three in succession from the 15th.
Woodland missed a birdie chance at the final hole but had a two-shot cushion when Reavie dropped his first shot of the day at the stadium par-three 16th, having gone through the green into the rough.
The 36-year-old world number 93, seeking his second PGA Tour win, holed a curling 12-foot putt at the last for another to take the tournament to a sudden-death conclusion.
However, he missed from six feet for par when the players returned to the 18th, leaving Woodland, who had driven into a fairway bunker, a tap-in for the title.
Crowd favourite Phil Mickelson, a three-time winner of the event, maintained hopes of a first win since 2013 after extending his run without a dropped shot to 41 holes.
The 47-year-old, who had slipped to 49 in the world rankings at the start of the week, delighted the gallery at the 16th with a 20-foot putt and made it three birdies in a row by holing from the edge of the green at the next.
But at the last he drove into thick rough in the middle of a fairway bunker and recorded a double bogey for a round of 69 and a share of fifth.
Scotsman Martin Laird had four birdies in his first six holes in a 68 and shared ninth spot, five shots back.
World number two Jon Rahm mixed three birdies with four birdies in a 72 that left him in a group with Fowler in joint 11th.