Woods reached the green in two thanks to a fantastic approach shot that gave him a makeable eagle putt.
And Woods knew the putt was bad.
At the 10th, Woods found the right rough and pitched to eight feet then made a tension-packed putt to rescue par, a right fist-pump showing his joy at avoiding a third consecutive bogey on the hole.
England's Wallace produced one of the most memorable moments of the tournament by claiming a "mindblowing" hole in one on the par-three 16th. That was four back of leader Brooks Koepka - well within striking range, but not as good as it might've been. Players try to downplay it, and I've downplayed it over the years myself because you're trying to downplay it yourself a little bit, but it's a pretty intense environment out there.
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Woods had never played a competitive round in St. Louis before teeing off this week at Bellerive, so it's understandable that his performance this weekend has drawn a massive swath of patrons tracking his every movement on the course. He left at least two strokes on the back nine, and an argument could be made that he could have been six better than he ended up.
"I can really tune in in the majors and I have no idea why", he said.
"I made sure on 17 I did". I said to my caddie a couple of holes before it was the most fun I'd ever had and then that happened.
Woodland immediately recovered the stroke he lost to par by draining a 19-foot birdie putt on No. 3 to move back into a tie with Koepka, who birdied No. 5 to regain sole possession of the lead. "If I can get off to a hot start there and playing the rest of the golf course really well, I know I have a chance to win this golf tournament".
Tiger Woods has a chance to win this thing at age 42, more than 10 years after his 14th and last major title and only three weeks after he held The Open lead with eight holes to play.
If Woods can keep his driver under control and manage to shoot under par on the back nine, it's possible. Look at that front nine. He went double bogey-bogey on 11 and 12 to fall out of the lead and finished tied for sixth.
Shane Lowry had an early start on Saturday morning to complete his second round at the weather-affected PGA Championship in St Louis, and the in-form Offaly man picked up where he left off on Friday. He not only changed shirts this time, he changed colors - from a gray-and-white striped design early in the round to royal blue from the fifth hole on.
"It's not necessarily the physical, it's mentally grinding that hard for 29 holes in this heat, " he said. He certainly gets points for showmanship and a willingness to attract some eyeballs, but he doesn't quite get full marks for creativity; Brown said he remembered seeing another fan do something similar about a year ago, and decided this would be the ideal time to go for it. And so he might, he could, it's so easy to imagine, because of that experience, because of how he's driving the ball, hitting greens, staying steady.
Now, if he can only get the putter to cooperate.