Sahith Theegala claimed his first PGA Tour victory at the Fortinet Championship as Justin Thomas' late challenge faded.
The 25-year-old American started the final round at Napa, California two shots clear and picked up three shots in his first five holes.
He finished with seven birdies and three bogeys in a round of 68.
Theegala effectively sealed the win on the 14th hole with a superb 20ft birdie putt to pull five shots clear of South Korea's SH Kim who eventually finished two shots back in second with Australia's Cam Davis two shots further adrift in third.
