(CNN) -- U.S. Ryder Cup player Hunter Mahan carded a second straight 65 to win the Phoenix Open by one stroke on Sunday.
It was the second PGA Tour title for Mahan, who came from a four-shot deficit overnight to edge out rookie Rickie Fowler by a single stroke.
Mahan's six-under 65 burst to life on the back nine as he carded an eagle and two birdies in four holes form the 13th to record a 16-under total of 268.
It was tough luck on Fowler, who was left with the second runner-up spot of his burgeoning career a 68 for 269.
Reigning U.S. PGA champion Yang Yong-Eun of South Korea also carded a 65 to finish one shot further back in third.
The major winner held the outright lead but blew his chance when he found water off the 17th tee.
Fowler, beaten in a playoff at the Frys.com Open in his second event on Tour, played it safe on the par-five 15th as he did not attempt to go for the green in two and then could not find a birdie in the remaining holes.
Australia's Mathew Goggin and home players Chris Couch and Charles Howell shared fourth place on 13-under, but overnight leader Brandt Snedeker slipped away with a 78 to finished tied for 43rd.
Heavy overnight rain saw smaller last day crowds than usual, but an estimated 44,000 filled the galleries and saw a tense finish as the three leaders battled it out.
England's Ian Poulter, winner of last week's WGC Match Play title, finished with his second straight round of 70 and was unable to mount a challenge as he closed on 275 - nine under.