Overcast skies held temperatures in the 60s on Friday. A cooler wind remained steady at 10-20 miles per hour, meaning the day's scoring average went to 71.68 at Hardscrabble Country Club course.
Langham ran into trouble early in his round Friday with a bogey at the par-5 third hole. He mis-hit his second shot and finally played a 3-iron onto the green, where he two-putted for bogey.
'If there was such a thing as a good bogey that was it,' he said. 'You just keep plugging along. You never know when the good holes are going to come. You don't want to psyche yourself out before you get a chance to have some good things happen.'
The mistakes didn't end there for Langham. He bogeyed the next hole, the fourth, but rebounded with a pair of birdies over his last three front-nine holes to make the turn at even-par 35.
Langham's back nine was a wild one with only one par, that coming at the par-4 14th. He traded bogeys and birdies over his first four holes on the second nine but birdied three of his last four, including a 35-footer at the last to take the 36-hole lead.
'It was cold out there,' said Langham. 'Two-under is a good round today, no matter how I did it. If I did it with 16 pars and two birdies, I'd be happy with that too, considering I was 2-over through four holes.'
Price, who was third here two years ago, recorded four birdies, two bogeys and an eagle for a round of 4-under-par 66. He parred the final six holes to join Sullivan in second. Sullivan shot a 3-under 67 in the second round.
'The way I've played the last three or four years, I'm very happy with 6-under,' Sullivan said. 'I'll take two more days of 6-under and just let the chips fall.'
Brad Fabel (69), Ryuji Imada (69), Zach Johnson (70), Gabriel Hjertstedt (67), David Edwards (68) and Boo Weekley (69) share fourth place at 5-under-par 135.
The 36-hole cut fell at 2-over 142 and 71 players advanced to the weekend.