Charley Hoffman knows his time on the PGA Tour is running short. He can feel every one of his 48 years whenever his troublesome back acts up, and he knows the recent reduction in tour cards will end most players’ careers well before they reach his age.

US golfer Charley Hoffman and Filipino player Rico Hoey shot a pair of 63s to take the halfway lead at The American Express tournament in California.

The 31-year-old Austrian won the American Express at PGA West without carding a bogey until the 70th hole of the tournament.