PERTH, Australia — Overnight leader Peter Uihlein of the United States shot a 4-under 68 and was tied for the second-round lead with Brett Rumford at the Perth International, with former British Open champion Louis Oosthuizen a stroke behind on Friday.
Uihlein, who birdied his final two holes after starting on the back nine, and Rumford, who carded 65, had 36-hole totals of 11-under 133 at Lake Karrinyup Country Club.
Oosthuizen, the 2010 British Open champion playing for the first time in Australia, had a 64 for the low round of the day after an opening 70.