"It's pretty surreal," Henley said.
In the first full-field event of the season, the rookies were leading the way. All they did on another windy, warm day along the shores of Oahu was trade places atop the leaderboard. Langley opened with a 62 and followed that with a 66. That typically would be enough to stay in the lead.
Langley said he tried to stay aggressive, and then he felt he had no choice. He birdied his last three holes to reach 128.
Piercy looked as though he had a chance to catch Henley in the afternoon, even as a gentle wind turned into nothing more than a breeze, but he spent most of his time grinding over pars. A birdie on the par-5 ninth, his last hole, gave him another 64.
That means Henley and Langley will be paired together for the third straight day, this time in the last group going into the weekend.
The college graduates have been good friends for the past few years, each helping when the other was going through a bad spell. They have been linked together since they shared low amateur honors at Pebble Beach in the 2010 U.S. Open.
"It's never easy to back up a really good round, I kind of got off to a little slower start," Langley said. "But it was certainly nice to finish the way I did and kind of get back in it with Russ. He played so well, and I was just trying to keep pace as much as I can. To finish that way was really good."
The previous 36-hole record at the Sony Open was 128 by five players, most recently John Cook in 2002.
Matt Kuchar made eagle on the 18th hole to finish off a 63. He was three shots behind.