Graeme McDowell birdied two of the first four holes Saturday to maintain the lead early in the third round of the World Challenge in Thousand Oaks.
Tiger Woods, meanwhile, struggled on the front nine at Sherwood Country Club.
McDowell, who led after 36 holes, was 11 under par and two shots ahead of Keegan Bradley through seven holes Saturday as an early morning drizzle kept the golf course soggy. Bradley was three under for the day.
Woods, a five-time winner of the World Challenge, which benefits his charitable foundation, was six shots behind McDowell at five under.
Woods started well by chipping in from off the first green for a birdie. But he had to scramble to save pars after errant shots on the fourth and sixth holes.
Then, on the par-three eighth hole, Woods flubbed a chip shot from just off the green and had to settle for a bogey.
Masters Champion Bubba Watson got hot Saturday. Through 13 holes, Watson was five under par on the day with six birdies and one bogey, and that left him four under par for the tournament.