SCOTTSDALE, Ariz. —
Mickelson shot a 4-under 67 to finish at 28-under 256, two strokes off the PGA Tour record of 254 set by Tommy Armour III in the 2003 Texas Open. The 42-year-old former Arizona State star won after struggling the last two weeks — tying for 37th at La Quinta in his opener and 51st at Torrey Pines — and making news by talking about tax increases.
"It's an important one for me, because it's been a while since I won, been a while since I've been in contention," Mickelson said. "I was certainly nervous heading into today. I think the thing I'm most excited about was the way I was able to regain control of my thoughts after a few shots early on that I didn't care for."
Mickelson missed a chance for a 59 in the first round when his birdie putt on the final hole caught the right edge of the cup, curled 180 degrees and stayed out. He settled for a 60 and followed with rounds of 65 and 64 to take a six-stroke lead into the final round.
"I think that sets up the tone for the rest of the year, because I really started to play well," Mickelson said. "But for me, the rest of the year took a turn on Tuesday when I got my new driver. It just changed my whole deal."
Snedeker finished second, four strokes back after a 65.
"Sometimes you have to tip your hat and say, 'Phil played unbelievable and deserved to win,'" Snedeker said. "That's kind of what this week was all about."
Mickelson took a three-stroke lead to the 17th tee, and nearly drove into the left-side water on the drivable par 4, his ball stopping a yard short of the hazard. He flopped his second shot 15 feet past the hole and made the birdie putt.