American Patrick Reed carded a four-under 67 to win the WGC-Mexico Championship on Sunday by one stroke.
The 29-year-old world number 14, joint second overnight, could afford to bogey the last as he finished 18 under, one ahead of compatriot Bryson DeChambeau.
World number four Justin Thomas, one ahead at the start of the final day, slipped to a 73 for a share of sixth.
Spain´s Jon Rahm carded a 67 left him three back in third place, with world number one Rory McIlroy a shot further back after a 68.
