PALM DESERT, Calif. -- Chad Campbell shot a 6-under par 66 Thursday to take a four-shot lead through two rounds of the Bob Hope Chrysler Classic.

Campbell, who tied for second in Hawaii last week, remained bogey-free through 36 holes of the 90-hole tournament and was at 15-under 129.

Pat Perez had a wind-blown, waterlogged round and struggled to a 73 after an opening 60 and was tied for second with John Senden, who had a 63 to go to 11 under.

Despite winds gusting at times during the second day, Campbell managed to make six birdies at La Quinta Country Club, one of four courses used for the first four days of the tournament.

His birdies included putts of 25 and 20 feet.

Perez, whose 12-under round a day earlier was the lowest ever to start the traditionally low-scoring Bob Hope Chrysler Classic, struggled much of the second round at the new Classic Club at Northstar. Playing in swirling winds, he was 4 over for the day before he birdied four of six holes beginning at No. 12.

He had a 4-iron into the water at No. 18 for his sixth bogey of the day.

Olin Browne had a 69 at La Quinta Country Club and Steve Elkington a 70 at PGA West to tie them for fourth at 10 under.

Phil Mickelson, the 2002 and 2004 Hope champion, shot a 69 at PGA West that left him six shots off the lead at 135. Mike Weir, the 2003 champion, shot 69 and was in a group another stroke behind.

The 31-year-old Campbell, a two-time tournament champion, came close to winning last Sunday for the first time since his victory in the 2004 Bay Hill Invitational. Tied with David Toms headed into Sunday, Campbell finished with a 70 to Toms' winning 65 and tied for second with Rory Sabbatini.

"Obviously, I was disappointed and not happy with the way I played on Sunday," Campbell said. "Looking back at it, taking a second the first week of the year after taking two months off, in hindsight it wasn't that bad of a week.

"More than anything, I got confidence out of it."

Campbell had an "entertaining" second day. He was paired with singers Alice Cooper, Justin Timberlake and Darius Rucker of Hootie and the Blowfish.

"It was a great group," Campbell said. "They hit some good shots and we just had a good time. The fans were great.

"We had quite a few people out there watching. Everybody knows what's going on, so they are quiet whenever I'm hitting and then whenever the others are hitting or entertaining them (the fans), it can get loud at times." Perez was frustrated by his round over the new course, which plays to 7,305 yards.

"Terrible, compared to yesterday. That's about it," Perez said. "I've played four rounds this year, three have been in the wind and I've shot over par every time."

He said he didn't play that badly, but that the Classic Club is much different from the other three courses being used for the tournament. He shot his 60 at PGA West.

Chad Campbell made six birdies during his bogey-free round Thursday. (Feldman/ WireImage)

"It's not even close to PGA West," Perez said of the new course. "And the wind tunnel, it howls here. The greens are hard. The course is brand new, so it's not responsive to spin or anything. It's just completely different." Asked if he will be able to put the round behind him, Perez smiled and said, "Oh, I can't wait to get to Bermuda Dunes tomorrow."

David Duval, after shooting a first-round 69, ballooned to a 78, also at the Classic Club.

Notes: Defending champion Justin Leonard shot 72 at La Quinta and was tied for 35th at 139. ... Actor/comedian George Lopez said one of the side benefits of surgery he underwent last April -- a kidney transplant -- was an improvement in his golf swing. The stitches, he said, reminded him not to pull his head up. Lopez, one of the celebrities playing in the Hope pro-am, joked that if his game starts to go south, "Cut me. I'm ready to go into the hospital and get re-sutured."

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