Full final round leaderboard from Valhalla
The Olympic champion held his nerve to birdie the 72nd hole and finish a shot ahead of Bryson DeChambeau.
Xander Schauffele outdueled Bryson DeChambeau down the back nine on Sunday to win the PGA Championship, capturing his first major triumph with the lowest score in major history.But he matched the lowest round in major history with a nine-under 62 on Thursday and was equal to the challenge on Sunday.