John Huh beat Robert Allenby in an eight-hole play-off to claim a dramatic victory and win the Mayakoba Golf Classic.
21-year-old Huh posted six birdies and an eagle as he finished the final round eight under par - 13 under overall.
He was two shots behind Allenby when he signed his scorecard, but the Australian unexpectedly double-bogeyed his final hole to leave the scores tied.
The pair continued to match each other in the play-off until the eight extra hole, where Allenby hit a hazard on the par-3 10th and failed to save par.
Huh tapped in to claim his first career PGA Tour win at just his fifth attempt.
Afterwards, Huh told ESPN: "It's amazing. It's my rookie year and playing in my fifth event on the PGA Tour. I just couldn't put it in words."
The play-off was the second longest in PGA Tour history.
