Los Angeles - Tiger Woods' return to Riviera Country Club lasted just two days as the 14-time major champion missed the cut in the Genesis Open, where Graeme McDowell and Patrick Cantlay shared the lead on Friday.
Woods's eight bogeys included three in a row on the back nine as he battled to a five-over par 76.
"I really didn't play well today," Woods said.
"I missed every tee shot left and I did not putt well, didn't feel very good on the greens and consequently never made a run.
"I knew I had to make a run on that back nine, and I went the other way."
Woods had a 36-hole total of six-over par 148 - four shots outside the projected cutline as darkness fell and 13 shots off the pace set by McDowell and Cantlay.
McDowell opened his five-under par 66 with three straight birdies at the 10th, 11th and 12th. He followed that with back-to-back bogeys but grabbed four more birdies to surge up the leaderboard.
Cantlay, who shared the overnight lead with Tony Finau, had five birdies in his two-under par 69.
He launched a string of three straight birdies with a near hole-in-one at the par-three sixth, his 15th of the day.
American Sam Saunders was seven-under with three to play when darkness fell with a handful of players on the course.
Ryan Moore closed out a three-under par 68 in the fading light to reach the clubhouse on six-under par 136.
Former US Open winner McDowell has just one top-10 finish worldwide in the past 18 months. Without a victory since 215, he has plummeted to 219th in the world rankings and arrived at Riviera off three straight missed cuts to start the season.
He said his game for the past several months had been much better than those results indicated.
"All I'm missing is a couple little numbers and a little bit of confidence," McDowell said. "I'm really excited to be going into the weekend of the tournament on the business end of things."
Woods has no such weekend excitement to look forward to.
The southern California native grew up playing Riviera, and indeed played his first US PGA Tour event here as a 16-year-old in 1992.
But he's never won in 11 prior appearances, and hadn't teed it up on the classic course west of downtown Los Angeles in 12 years.
It was always going to be a tough proposition in the second tournament of his latest comeback bid -- three weeks after he finished tied for 23rd at Torrey Pines.
This week the missed fairways were joined by plenty of missed greens and, on Friday, missed putts.
"I didn't feel very good when I was warming up with my putter," said Woods, who had three three-putts on the back nine.
Making matters worse, he wasn't giving himself many comfortable looks.
"All the spots you're supposed to not miss it in, I was putting it in," Woods said.
"That was frustrating, because I knew where to hit it and I wasn't able to hit it there.
"My wedge game is fine," he said. "But my normal iron shots that I've always dialled in for much of my entire career, it's just not there."
Woods said the real cure is more tournament play. On Friday he committed to next week's Honda Classic in Florida, his decision to play back-to-back weeks a testament to his faith in his hard won fitness.
"I've just got to play more tournaments," he said.
While Woods's weekend duties are reduced to those of tournament host, with his TGR Foundation the charitable beneficiary of the event, a bevy of players remain in the hunt.
Twenty-three players are within five strokes of the lead. That includes four-time major winner Rory McIlroy and Justin Thomas, who both played alongside Woods.
Thomas, whose five victories last season included the US PGA Championship, carded an even par 71 while McIlroy signed for a two-under 69. They were both in a group of 10 sharing 15th place on two-under.
"It's sort of anyone's tournament right now," McIlroy said.
"Thirty-six holes around here, it's a lot of golf."
scores on Saturday after completion of the second round of the PGA
Tour Genesis Open (Third round underway. USA unless noted, par-71):
135 - Patrick Cantlay 66-69, Graeme McDowell (NIR) 69-66
136 - Ryan Moore 68-68, Sam Saunders 67-69
137 - Tony Finau 66-71
138 - Bubba Watson 68-70, Jamie Lovemark 68-70, Derek Fathauer 68-70, Kevin Na 68-70
139 - Retief Goosen (RSA) 68-71, Rafa Cabrera Bello (ESP) 72-67, Troy Merritt 68-71, James Hahn 70-69, Scott Stallings 71-68
- Jason Kokrak 68-72, Kevin Chappell 69-71, Martin Kaymer (GER) 73-67,
Cameron Smith (AUS) 72-68, Alex Noren (SWE) 71-69, Tom Hoge 67-73,
Bryson DeChambeau 71-69, Justin Thomas 69-71, Rory McIlroy (NIR) 71-69,
Aaron Baddeley (AUS) 72-68, Austin Cook 74-66
141 - Martin Laird
(SCO) 68-73, Ryan Blaum 71-70, Brandon Harkins 71-70, Jordan Spieth
71-70, Xander Schauffele 71-70, Patrick Rodgers 70-71, Phil Mickelson
70-71, Tommy Fleetwood (ENG) 70-71, Abraham Ancer (MEX) 72-69, Anirban
Lahiri (IND) 72-69