A bogey, double-bogey run at Nos.
Woods had gone out in front on his own after reaching the turn at two-under for his round, but a double-bogey at the 11th was followed by a bogey at the 12th as he slipped back to four under par for the championship.
"Oh, it was a blast", said Woods, who was also delighted to have had his children see him perform well after years of watching him struggle. I was playing consistently, solidly all week.
"The golf course was gettable", Woods explained to USA Today.
Sung Kang shared the dubious honor of carding a birdie-free round.
"You knew you'd have three, four good looks at birdies, and the rest of the holes, you were just going to try to position it to make par".
"But I'm a little ticked off at myself for sure".
More importantly, Spieth's putting stroke restored his confidence, which should extend through the rest of the bag. I'm kind of on acceptance now. "Really good sportsmanship with me", he added. "It's the best golfers in history and to be on there is incredible for someone like me coming from Italy, not really a major golfing country".
The 42-year-old Woods, back at the peak of the game after multiple back surgeries, shot 71 to end five under with fellow American Kevin Chappell and England's Eddie Pepperell.
"Looking at the scores starting out today. there weren't a lot of low scores out there", he said.
"I was a little hung over".
"Jordan and I got off to a weird start, feeding off each other in the worst ways possible, and we sort of kind of calmed the sails mid-round".
Woods said it felt like old times. But as it happens, I shot 67.
Spieth made a bogey after a wayward drive.
His 69 left him eight under par, two shots clear of his nearest challengers including Justin Rose and Rory McIlroy, three ahead of Woods and four shots ahead of last year's victor Jordan Spieth. Like 11, he made a decision to go aggressive, attempting a high-risk flop shot over a bunker instead of playing safely past the pin and taking double bogey out of play.
Herbert beat home Marc Leishman, who faded with a 76 to finish at 5-over in 60th place, one ahead of Brett Rumford (74), with Cameron Smith's final-round 77 leaving the reigning Australian PGA champion at 10-over and 78th spot.
Sam Locke got a hero's welcome on his stroll up to the 18th green.
However, Tommy Fleetwood's chances of becoming the first English victor since Nick Faldo in 1992 looked to have gone after he pulled his third shot on the sixth out of bounds, the resulting double bogey leaving him six off the pace.
Leaders are on the range at the British Open, where they will be greeted by warm breezes in the final round at Carnoustie. "I just saw my ball go right". This is the previous year the event will be played there, and Woods made it a goal to return.
Francesco Molinari is a man of, uhh, interesting ambitions. He has won The Open Championship, still known colloquially to many as the British Open, three times, including back to back triumphs in 2005 and 2006.