By Brian Wacker, PGATOUR.COM Site Producer

AUGUSTA, Ga. -- K.J. Choi’s success at Augusta National is well-documented. He tied for fourth a year ago, was third in 2004 and tied for 15th in 2003. Here in Round 2, he’s in the lead after moving to 8 under for the week with a birdie on the par-3 sixth.

Y.E. Yang was once at 8 under, too. But he’s since dropped back to 6 under after a bogey on the par-4 ninth and another on the par-4 10th.

Overnight co-leader Alvaro Quiros, meanwhile, has already dropped a shot following a bogey on the first hole.

Others climbing onto the first page of the leaderboard include Geoff Ogilvy, who is 1 under through seven holes and 4 under for the tournament, and Gary Woodland, who is 1 under through 6 holes and 4 under for the week.