The 42-year-old former Arizona State star made a 4-foot birdie putt on the par-4 ninth — the hole where he missed the putt for a 59 on Thursday — and overpowered the par-5 15th for an eagle, hitting to 4 feet after a 358-yard drive.
"I felt really comfortable on the tee box, so I kind of let one go and caught a hold of it and ended up having 191 to the pin," Mickelson said. "It was only 186 to the front, and I hit a hard 8-iron. There was a little bit of helping wind."
After a par on the par-3 16th that drew boos from the rowdy fans on the stadium hole when his tee shot trickled into the fringe, he drove the green on the 344-yard 17th and two-putted from 70 feet — leaving his eagle try a foot short — for birdie.
Bradley also eagled the 15th, hitting a 350-yard drive and a 7-iron approach to 8 feet.
"I just smashed a driver down there," Bradley said. "I had been hitting 3-wood and I'm driving the ball so well that I just decided to rip driver down there."
He birdied the 16th, hitting to 5 feet.
"It reminds me of when I go to Fenway Park," Bradley said. "There's always like a murmur. ... It's really cool. I dig it. I wish there was more holes like that out here."
Haas began play on No. 10 and made the turn at 6-under 30.
"We all know the way the course is playing, if there's no wind on the weekend, you've just got to keep making birdies," Haas said.
Last year in the Northern Trust Open at Riviera, Haas beat Mickelson and Bradley with a 45-foot birdie putt on the second hole of a playoff.
"It's just another day. It's moving day," Haas said. "Hopefully, I can move up the leaderboard and he (Mickelson) doesn't go too crazy."
DIVOTS: Jason Dufner, paired with Mickelson and Rickie Fowler, missed the cut by a stroke to end the tour's longest active streak at 22. Dufner shot 68-71, leaving Ian Poulter with the longest current streak at 16. Fowler also shot 68-71 to drop out. ... Golf Channel will have "spotlight" coverage" of the 15th, 16th and 17th holes Saturday and Sunday, opposite the first two hours of NBC's regular broadcast. The sister networks will stagger commercial breaks.