Meen Whee Kim shot a 9-under 63 on Thursday on PGA West's Stadium Course to take a one-stroke lead after the second round of the PGA Tour qualifying tournament.
Kim had a 13-under 131 total in the six-round event. The top 25 and ties will receive 2013 PGA Tour cards and the next 50 and ties will earn Web.com Tour cards.
Two-time tour winner Vaughn Taylor was second after a 64 on the Jack Nicklaus Tournament Course.
Richard H. Lee and Steve LeBrun were 11 under. Lee had a 67 in the Stadium Course, and LeBrun had a 69 on the Nicklaus Tournament Course.
Sweden's Robert Karlsson, an 11-time winner on the European Tour, was tied for fifth at 10 under after a 68 on the Stadium Course.
Two-time heart transplant recipient Erik Compton dropped into a tie for 23rd at 7 under after a 70 on the Nicklaus Tournament Course.