He sits six shots behind clubhouse leader Paul Casey, with the England veteran shooting an impressive 67 at the hard Spyglass Hill course to climb to 15-under the card.
Mickelson, a four-time victor of the event, teed off on the 10th and raced to six under for his round with six birdies in his first 14 holes.
Scott Piercy totaled 69 at Pebble and is four back in a tie for third with Lucas Glover, who closed his 70 at Monterey Peninsula Country Club www.mpccpb.org with a bogey on the ninth hole, while first-round co-leader Brian Gay finished with a 69 at Pebble Beach and is another shot down in a tie for fifth with Matt Every, who had also had a 69 at Pebble.
California native Phil Mickelson feels his intimate knowledge of poa annua greens will give him a distinct advantage as he chases a 50th career victory at the Pebble Beach Pro-Am.
That makes Mickelson's up-and-down day which featured four bogeys, four birdies and an eagle much more palatable.
Mickelson's 70 at Pebble Beach Golf Links www.pebblebeach.com was highlighted by a four-foot eagle putt on the 14th hole after a brilliant approach shot from 238 yards. "It was very hard but I was able to come back when it cleared up".
"I am having a blast", Casey said.
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Around the same time a huge roar reverberated around the Barwon Heads links and it was a Scot who had caused it. We played alternate groups, it was good to catch-up with a lot of girls I grew up playing golf with as well.
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However, Murray had a brilliant college football season in 2018, passing for 4,361 yards and 42 touchdowns for Oklahoma. Murray announced his decision to exclusively concentrate on the gridiron Monday on Twitter .
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The show's host, Alicia Keys , welcomed the quartet of Lady Gaga , Jada Pinkett Smith , Jennifer Lopez and Obama onto the stage. Obama's initial comments were interrupted by raucous applause and many in the Staples Center crowd stood.
"I thought anything in the 60s was going to be a heck of a round, and I was one shy", Mickelson said.
Like a scramble out of the pocket to turn a broken play into a touchdown, Romo lined up his next shot and pulled off what one golf media outlet has already dubbed the shot of the year. "He's going to be tough to catch".
"I stand firm on what I said", Casey said. "The bit you can't control, the weather, you've just got to cross your fingers and hope you're at the right part of the golf course at the right time".
Former US Open victor Lucas Glover (70) and fellow American Scott Piercy (69) share third at 11 under.
"It's such a joy playing these courses", added Casey, who is seeking a third US PGA Tour title.
Jordan Spieth, who was tied for the lead through 16 holes when rain halted the second round on Friday, returned with a late bogey to start the third round one off the pace.