Spain's Sergio Garcia fired a five-under-par 66 to join a trio of other players on top of the leaderboard after round one of the PGA Nissan Open at Pacific Palisades, California.
Garcia, ranked 14th in the world, shared the lead with Americans Brent Schwarzrock, Tom Scherrer and defending champion Kirk Triplett.
"It's a great round and I'll just try to keep it going," said Garcia.
"I've been working a little more on my putting. I think everything was going pretty well."
Japan's Joe Ozaki and Shigeki Maruyama, Australia's Bradley Hughes and Greg Chalmers, Englishman Edward Fryatt, Bob Tway and Rocco Mediate were all one shot back at 67.
World number one Tiger Woods, without a win in his last eight events for his longest title drought in two years, fired a par 71.
"I didn't hit the ball well at all," said Woods.
"My chipping wasn't very good, my putting was suspect, (but) I drove it great, which is key around this golf course."
Garcia started on the back nine and picked up a birdie at hole 11 after two-putting from 35 feet.
He immediately gave back that stroke after finding a bunker at the next hole but then got birdies at each of the next two holes.
Garcia made the turn at two-under and birdied the first and second. He just missed an eagle at one and stuck a six-iron to within six feet to set up his birdie at two.
Garcia capped his scoring by rolling home a four-footer for birdie at the sixth.
"The people here in the United States treat me really well," he said.
"I've never had a complaint about any US crowds."