Maui, United States: Zach Johnson won the Tournament of Champions after rolling in seven birdies en route to a bogey-free 66 in the final round at Kapalua Resort on Monday.
The 37-year-old American tied Billy Horschel for the low round of the day to win the USPGA Tour tournament by one shot.
"Today was a grind but I felt at ease," Johnson said. "I was comfortable. Yesterday, I didn't score that well.