Tiger Woods and Phil Mickelson were set to miss the cut as U.S. Open champion Webb Simpson moved one stroke clear in Friday's second round of the weather-delayed Greenbrier Classic at White Sulphur Springs in West Virginia.
Woods, the hottest player on the U.S. circuit this season with three victories in his last seven events, struggled with distance control in his approach play on the way to a one-under-par 69 on the Old White TPC Course.
The 14-times major champion needed to ace the par-three last to ensure he advanced to the weekend but his tee shot settled seven feet from the cup from where he sank the birdie putt for an even-par total of 140.
It will be only the ninth time Woods has missed the cut in a PGA Tour event as a professional, and the second occasion this year after his failure to progress at the Wells Fargo Championship in May.
"I didn't quite have it," a frustrated Woods told reporters after mixing four birdies with three bogeys. "I drove it really good today and I just did not have the feel for distances.
"The ball was just going forever. I know we're at altitude but I just couldn't get the ball hit pin-high no matter what I did. And consequently I made some bogeys."
Mickelson carded a second successive 71 to finish three strokes outside the projected cutline as he and Woods are poised to miss the cut in the same event for the first time since the 1993 Byron Nelson Championship.
Play was suspended for just under two hours earlier on Friday due to the threat of lightning and the second round was eventually halted for the day in fading light.
While Mickelson and Woods were set to exit, fellow American Simpson carded a flawless four-birdie 66 to take control of the tournament with a nine-under total of 131 after 36 holes.
The 26-year-old, who clinched his first major title by one shot in last month's U.S. Open at the Olympic Club, knocked in a six-foot birdie putt on the 18th green to snatch the outright lead.
Compatriots Jonathan Byrd (68), PGA Tour rookie Charlie Beljan (62), Jeff Maggert (68) and Jerry Kelly (66) were tied for second. (Reporting by Mark Lamport-Stokes in Los Angeles; Editing by Frank Pingue and Patrick Johnston)