Tiger Woods is doing that thing he does where he gets everyone all riled up early in a tournament.
Woods came out firing at Aronimink Golf Club in Newtown Square, Pennsylvania, with an opening nine 29, the second-lowest score through nine holes of his entire career.
The 14-time major victor Woods jumped out of the gates after teeing off the 10th hole, bagging three birdies in his first four holes before a stunning second shot from 242 yards into the par-5 16th hole.
But Woods made amends with a closing birdie at the par-five ninth, where he sank a seven-foot putt.
Woods meanwhile also struggled to find consistency in his second round, three birdies cancelled out by three bogeys to leave the American on even par for his round and eight-under par for the tournament heading into the weekend.
But 42-year-old Woods bounced back with a birdie at the par-5 ninth to post his lowest opening round at a US Tour event in 19 years.
Woods implored himself to hole more putts with forecasted Friday night storms expected to further soften conditions at Aronimink.
"I've got to make birdies", Woods said.
"To shoot 29 on the front nine helps".
Woods clearly looked refreshed after electing not to visit the course on Wednesday.
"The heat is hard for me because I lose so much weight out here", said Woods. Only six players among the 69-player field shot over par.
"What was worst was just not giving myself a better chance to shoot the 59", he said.
Woods is still in the mix despite Xander Schauffele (64) surging into the outright lead at 13 under at the elite 70-man event - the penultimate leg of the $US67 million ($102.6 million) FedEx Cup playoffs.
"That round today was easily six or seven under par, and it turned into even par which is not what I needed to do today".