Maui, HI (SportsNetwork.com) - Zach Johnson fired a bogey-free, 7-under-par 66 on Monday to win the Hyundai Tournament of Champions by a single stroke.
Johnson tied Billy Horschel for the low round of the day, carding seven birdies on the Plantation Course at Kapalua Resort. The 37-year-old finished the event at 19-under-par 273 and secured his 11th PGA Tour title.
"I just picked it apart. I didn't deviate from anything that I typically do on the golf course," Johnson said of his performance.
Reigning PGA Tour Rookie of the Year Jordan Spieth, who shared the overnight lead with Dustin Johnson and Webb Simpson, shot 69 and took second place at 18-under 274.
Simpson carded a 70 and tied for third at minus-17. The 2012 U.S. Open winner ended alongside Kevin Streelman, who birdied four of his last five holes for a final-round 67.
Jason Dufner (69) grabbed fifth at 15-under, while Johnson (73), Adam Scott (69), Matt Kuchar (67) and Horschel shared sixth at minus-14. Johnson, last year's champion, mixed five bogeys and five birdies during the final round.
Zach Johnson earned his second victory in less than a month, with the other coming in a playoff triumph over Tiger Woods at the unofficial Northwestern Mutual World Challenge.
At this tournament, Johnson held the halfway lead before stumbling to a 74 on Sunday and falling two strokes off the pace. He wasted little time erasing the deficit Monday, rolling home short birdie efforts at holes 2, 5 and 7 to join Spieth atop the leaderboard at minus-15.
Spieth, also bogey-free during the final round, converted one of his four birdies at the ninth to briefly reclaim the outright lead, but the 20-year-old couldn't keep pace with Johnson, who brought home the title with deft iron play.
Johnson again pulled even with Spieth at the 12th, where he dropped his approach from 90 yards within a foot and tapped in for birdie to reach 16- under.
After a par at the 13th, Johnson drained three straight birdie putts from within eight feet to pull ahead. The decisive run left Johnson three strokes clear and he parred out to end a minus-19.
"Today I just tried to remain athletic," Johnson stated. "I tried to stay unemotional, remain athletic over my putts and as a result we saw a lot go in."
Spieth birdied the 17th to move within a pair and he had a slim chance to force a playoff at the least, but his 90-foot eagle putt from the fringe ended five feet short of the cup.
NOTES: Johnson's previous best (official) finish of the 2013-2014 season was a tie for 16th at the McGladrey Classic ... Since his rookie season in 2004, only Woods, Phil Mickelson and Vijay Singh have won more PGA Tour events than Johnson ... Eight of Johnson's 11 PGA Tour wins have come on Bermuda grass.