Hunter Mahan produced a flawless round for the second consecutive day to win the Waste Management Phoenix Open by a single stroke from rising talent Rickie Fowler. The American made his move on the back nine with a pair of birdies and an eagle on the par-five 13th and after Fowler missed a birdie putt on the last the 27-year-old's second career PGA Tour title was assured.
Mahan was the only player in the field not to card a bogey over the final 36 holes as he finished 16-under-par following a six-under 65 on Sunday.
Fowler, playing just his sixth PGA Tour event, was just inches away from forcing a play-off when he rolled a 20-foot putt past the hole on the 18th green.
The 21-year-old will, though, likely reflect on a missed opportunity on the par-five 15th when, after driving to within range of the green, he opted only to lay-up and then managed just a par.
South Korea's Yang Yong-eun was third after he carded a 65 to finished 13 under.
Overnight leader Brandt Snedeker endured a terrible final round as he returned a seven-over-par 78, including double bogeys at each of the final two holes, to finish in a tie for 43rd.
Spaniard Alvaro Quiros was the best placed of the European raiders as the Ryder Cup hopeful recovered from double bogeys at the opening two holes to card a 70 and finish six shots behind the leaders.
Ian Poulter, who won at last week's WGC-Accenture Match Play, was a stroke further back after also posting a final-round 70.
For Mahan it was his first PGA Tour victory since winning the Travelers Championship in a play-off in 2007 and admitted his consistency over the weekend had been the key to his success.
"I played great. Tee-to-green it was flawless," he said in an interview on Sky Sports 2.
"I put the ball where I needed to put the ball. I gave myself a lot of easy looks, I really didn't struggled too much with par putts.
"It's been an ugly west coast for me. I haven't played as well as I would have hoped so to get a win feels awesome."
Mahan is also gunning to earn his place on the USA's Ryder Cup team at Celtic Manor in October after having been a captain's pick two years ago.
"This a Ryder Cup year so this is a year you really want to play well," he admitted.
"I definately want to make the team on my own."
Collated final-round scores & totals (USA unless stated, par 71):
268Hunter Mahan 68 70 65 65
269Rickie Fowler 65 67 69 68
270Y.E. Yang (Kor) 66 70 69 65
271Mathew Goggin (Aus) 66 67 70 68, Chris Couch 67 66 70 68, Charles Howell III 69 66 68 68
272Vaughn Taylor 68 68 68 68
273Bryce Molder 68 67 70 68, Robert Allenby (Aus) 69 65 69 70, Matthew Every 63 70 68 72, Joe Ogilvie 71 66 66 70, Scott Piercy 68 67 65 73, Camilo Villegas (Col) 62 69 71 71
274Tom Lehman 66 67 71 70, Mark Wilson 65 66 72 71, Alvaro Quiros (Spa) 67 66 71 70, Fred Couples 67 70 68 69, Ryan Palmer 69 68 69 68, Andres Romero (Arg) 69 67 69 69, Rich Beem 70 65 70 69, Ryuji Imada (Jpn) 65 71 68 70, D.J. Trahan 70 68 69 67, Ryan Moore 66 66 74 68
275Nick Watney 74 63 69 69, Michael Letzig 69 70 67 69, Pat Perez 65 68 71 71, Jeff Overton 67 68 70 70, Zach Johnson 66 68 71 70, Greg Chalmers (Aus) 68 66 73 68, Lee Janzen 69 67 67 72, Phil Mickelson 68 68 72 67, Anthony Kim 67 65 76 67, Chad Campbell 68 68 69 70, Ian Poulter (Eng) 72 63 70 70, Jimmy Walker 67 70 67 71
276Ben Crane 68 70 71 67, J.P. Hayes 69 68 70 69, Bubba Watson 69 70 68 69, Tom Gillis 70 68 67 71, James Driscoll 69 69 69 69, Skip Kendall 67 70 67 72, Kevin Streelman 69 67 71 69
277Ted Purdy 68 69 71 69, Matt Kuchar 68 70 68 71, Jeff Maggert 69 67 71 70, J.B. Holmes 69 68 71 69, Chad Collins 67 69 70 71, Fredrik Jacobson (Swe) 70 67 68 72, Mark Calcavecchia 68 68 67 74, Brandt Snedeker 66 67 66 78
278Ricky Barnes 68 71 71 68, Nathan Green (Aus) 70 68 69 71
279Kevin Na 70 69 72 68, Kenny Perry 68 70 72 69, John Rollins 69 66 72 72, Sean O'Hair 70 69 71 69, John Merrick 70 67 67 75, Scott Verplank 70 68 70 71, Parker McLachlin 67 70 70 72
280Chris DiMarco 69 69 69 73, Johnson Wagner 72 67 71 70
281J J Henry 73 66 72 70, Scott McCarron 68 71 69 73, Justin Rose (Eng) 65 70 71 75, Billy Mayfair 72 67 73 69, Geoff Ogilvy (Aus) 66 70 71 74, Carl Pettersson (Swe) 66 70 71 74
282Brian Gay 70 66 74 72, Briny Baird 68 69 73 72
284Brian Stuard 72 64 76 72, Kevin Stadler 66 73 77 68, Paul Goydos 70 67 75 72, Heath Slocum 69 70 71 74
286Aaron Baddeley (Aus) 71 67 74 74, Michael Sim (Aus) 69 70 75 72, Joe Durant 66 71 73 76, Ben Fox 67 72 74 73
287Braxton Marquez 74 65 70 78