This wasn't easy.
The final round was so tight, there was a five-way tie for the lead with two hours remaining.
Walker's big run began with a 12-foot par on the 14th hole. One shot behind Harris English, Walker rolled in a 15-foot birdie putt on the 15th hole, and took the outright lead when English behind him in the final group failed to save par from a bunker.
Walker made a 7-foot birdie putt on the 16th, and stuck his tee shot into 6 feet for birdie on the par-3 17th. A par on the last hole made him wait just a little bit longer.
Chris Kirk had a 30-foot eagle chip from just short of the green on the par-5 18th that would have forced a playoff. It stayed right of the hole, and Kirk made the birdie putt for a 66 to finish alone in second place.
Jerry Kelly (65) was alone in third. English never recovered from his bogey. He missed birdie putts on the last three holes for a 67.
Walker won the Frys.com Open in October, the first tournament of the new wraparound season. As the first multiple winner on the PGA Tour this season, he went to No. 1 in the Ryder Cup standings and is closing in on cracking the top 30 in the world.
Walker finished at 17-under 263 and earned $1.08 million. He already qualified for his first Masters by winning in October. Now he's piling up the wins.
With so many players in contention, the key was to keep bogeys off the card. Walker had made at least two bogeys in each of the three previous rounds, and it looked as if he was headed for one at the wrong time on the 14th hole when he chipped from an awkward stance near the bunker to about 12 feet. Kelly missed a 15-foot par putt from the same line, and Walker poured it in.
Jimmy Walker -17
Chris Kirk -16
Jerry Kelly -15
Harris English -14 Also
Daniel Summerhays -5