Walker overcame a long delay due to high winds with a solid effort on the par-71 Monterey Peninsula Country Club course in seeking his third victory in the current PGA season.
Fifteen players failed to complete their third rounds due to the bad weather. After they finish Sunday morning, all the golfers will head back to the par-72 Pebble Beach Golf Links for the final round.
A forecast of more inclement weather, however, could make for more delays.
Richard H. Lee, playing on the Spyglass course, notched even-par 72 to grab sole possession of fourth place at 6-under 209.
Notable deaths of 2014 [PHOTOS]
Michael Sam cut from the Dallas Cowboys