Scott Brown shot a 4-under 68 at Spyglass Hill on Friday and leads the Pebble Beach Invitational by one stroke over Jason Kokrak after two rounds.
Brown, who earned his first PGA Tour title this season, had two bogeys and six birdies, all within 10 feet. He is at 134 for the tournament.
Kokrak had a 68 at Del Monte. Kokrak also had six birdies and two bogeys.
Morgan Hoffmann, who opened with a bogey-free 65 at Spyglass and held a one-shot lead over four players, shot a 71 at Pebble Beach. Hoffmann had four bogeys and five birdies and is third at 136.
Hall of Famer Annika Sorenstam, who has played in the event several times since her LPGA retirement in 2008, had a 71 at Del Monte en route to a 141 total.
The 42nd event includes 80 professionals from the PGA, LPGA, Champions and Web.com Tours competing for the same prize money. The winner earns $60,000 of the $300,000 purse.