Scott Stallings opened a five-shot lead in the Humana Challenge, holing a 20-foot putt on the par-5 eighth hole for his second eagle on Saturday.
He shot a 9-under 63 at the PGA West's Jack Nicklaus course to reach 22-under 194 in the Coachella Valley in La Quinta.
John Rollins had a 64 to move into a tie for second with Stewart Cink (66), Roberto Castro (69), Charles Howell III (67) and Charley Hoffman (67).
Phil Mickelson had a 6-under 66 on the Arnold Palmer course and made the cut by two shots at 205.
Second-round co-leader James Hahn shot an even-par 72 at the Nicklaus course, and the former Cal player was at 202.
Lindsey Vonn won a World Cup downhill for her first victory in more than five weeks, beating Tina Maze by 0.43 seconds in Cortina D'Ampezzo, Italy. Vonn is recovering from a bacterial problem that sapped her energy the last few months. She clocked 1 minute, 38.25
Ramon Dominguez's agent says doctors are optimistic the nation's leading rider will fully recover from a fractured skull. He suffered a spill Friday at Aqueduct (N.Y.).
The NCAA Division I Board of Directors took the first step toward simplifying and deregulating the organization's complex and sometimes unenforceable rules. At the NCAA convention in Grapevine, Texas, the board approved 25 proposals that president Mark Emmert said "focus the rules on those things that are real threats to integrity of sport."