Matt Every's bogey-free 62 catapulted the American to the second-round lead in the US PGA Tour's Greenbrier Classic on Friday, but Phil Mickelson missed the cut.
Every rolled in a 10-foot birdie putt at his final hole, the par-four ninth, for a 36-hole total of nine-under par 131 on the Old White TPC course.
"I played really well tee to green, finally made some putts," Every said. "I haven't made anything all year and it just finally happened today -- been waiting for it."
But four-time major champion Mickelson had a disappointing return to action in his first tournament since a heartbreaking sixth runner-up finish at the US Open at Merion.
He shot 68 on Friday, but that wasn't enough to overcome his first-round 74, so he will not be among the 80 players who made the halfway cut at one-under 139.
In second place, one stroke behind Every, were Australian Steven Bowditch and Americans Daniel Summerhays, Bill Lunde, Russell Henley and Johnson Wagner.
Henley carded a 65, Lunde posted a 66, both Bowditch and Summerhays shot 67 and Wagner, who had posted a 62 on Thursday to share the overnight lead with Tommy Gainey, carded a 70.
Bowditch, who has just one top-10 finish in four seasons on the US PGA Tour, briefly led on Friday, but his round was marred by a three-putt bogey at his penultimate hole, the eighth.
"I'm going to go out there and play my game," Bowditch said of his plans for Saturday and Sunday.
"My golf swing feels probably the best it's felt in a long time now, so I'm sort of free-wheeling it ... just go out there and keep free-wheeling and hopefully make some putts."
Gainey's second-round 71 left him two shots off the pace on the tightly bunched leaderboard.
Gainey had teed off on 10 and briefly opened a two-shot lead with birdies at 12 and 14, but he had three bogeys on his second nine.
While the course played easier on Friday based on the scoring average of 69.668, Every's 62 was three shots better than the next-lowest round of the day.
"You have to give credit to the golf course," Gainey said. "I mean, really, in any other tournament besides the majors, everybody's shooting seven-, eight-, nine- under on the first or second rounds ... it played tough."
Gainey was in a group of four players on 133, along with England's Greg Owen, Sweden's Jonas Blixt and fellow American Ben Curtis.
Another half a dozen players were on 134.