American Webb Simpson clinched his first major title with a one-shot victory at the U.S. Open on Sunday after overhauling overnight leaders Jim Furyk and Graeme McDowell at a foggy Olympic Club.

The 26-year-old Simpson, who triumphed twice on the PGA Tour last year, charged into contention with four birdies in five holes around the turn on the way to a two-under-par 68 and a one-over total of 281.

(Reporting by Mark Lamport-Stokes in San Francisco; Editing by Julian Linden)