Reed closed with a 4-under 68 at Torrey Pines, making an eagle on the par-5 sixth and finishing off his ninth PGA Tour title with a birdie on the 18th.
Abbotsford, B.C. native Adam Hadwin finished in a tie for 18th place. The 33-year-old fired a 1-under 71 to end his tournament at 5-under par. Corey Conners of Listowel, Ont., fired a 2-under 70 in his final round to finish in a five-way tie for 37th. Merritt, B.C. native Roger Sloan finished in a tie for 53rd.
The former Masters champions finished at 14 under after a consistent four days at the blufftop municipal courses overlooking the Pacific Ocean. He shared the first-round lead with Alex Noren, was in a group one shot off the lead in the second round and then shared the third-round lead with Carlos Ortiz.
The controversy arose Saturday on the par-4 10th when Reed hit a 190-yard shot out of a bunker with a TV replay showing the ball bounced once before settling into the rough. Without waiting for an official, Reed picked up the ball to see if it was embedded. Reed told the official that no one in his group, as well as a nearby volunteer, saw it bounce. He was awarded a free drop and saved par in a round of 70.
On Sunday, Reed jump-started his round with a 45-foot eagle putt on the No. 6 to get to 12 under and followed with a birdie on the par-4 seventh. His only bogey was on the par-3 eighth, and he rebounded with a birdie on the par-5 ninth. He played par the rest of the way until sinking an 8-foot birdie putt on No. 18.
Tony Finau, Xander Schauffele, Ryan Palmer, Henrik Norlander and Viktor Hovland tied for second.
Hovland had been the closest in pursuit with four birdies on the front nine, including on the ninth to get to 12 under. But the birdies dried up and he bogeyed Nos. 14, 15 and 17 — missing a 2-footer on 17 — in a round of 1-under 71.
Ortiz stumbled badly with a round of 6-over 78. He hurt himself with three bogeys on the front nine that left him even at the turn. He had even more trouble on the back nine, when he bogeyed No. 11 and then had trouble getting out of a greenside bunker on No. 12, taking a double-bogey 6. He bogeyed 15, 16 and 18.