Mike Weir closed with three birdies at Poppy Hills to finish with a 5-under 67 on Friday, moving into the lead after two rounds at the Pebble Beach National Pro-Am in Pebble Beach, Calif.
Weir finished his first nine holes in even par, but after the turn he moved briskly up the leaderboard as first-round leader Luke Donald sputtered through his round at Pebble Beach.
Aaron Oberholser followed up his first-round 65 with a 4-under 68 at Spyglass Hill to move into second place at 11-under, three shots back of Weir. Oberholser will play Pebble Beach on Saturday.
Jonathan Byrd and Fredrik Jacobson were tied with Donald at 10-under.
Donald scorched Spyglass Hill on Thursday, matching Phil Mickelson's course record 62. But he failed to capitalize on that quick start and turned in an even-par 72 Friday, giving him a total of 134 for the first two rounds.
K.J. Choi shot a 6-under-66 in the second round of the Johnnie Walker Classic to take a two-shot lead over Kevin Stadler in Perth, Australia.
Choi had six birdies on the fast greens of the $2.1 million event at the Vines Resort and Country. Stadler had a 69 with an eagle on the 18th, two birdies and a bogey. He had shared the overnight lead with Adam Scott, who slipped four shots back with a 71.
Retief Goosen (72), U.S. Open champion Michael Campbell (74) and Colin Montgomerie (74) all missed the cut.
-- From wire reports