Dustin Johnson tees off on the ninth hole during the second round of the Byron Nelson golf tournament at TPC Four Seasons Resort, Friday, May 19, 2017, in Irving, Texas.
(Ashley Landis/The Dallas Morning News via AP). The ball landed in the rough closer to the first fairway with a temporary concession stand between him and the hole.
His best guesses were a frog or rat, though he was too disoriented to be sure.
Kokrak's round was bogey-free, beginning with birdies on two of his first three holes.
"I was so in amazement of what just happened. I couldn't see it because it ran underneath the grass again".
Matt Kuchar, Jhonattan Vegas, Jason Kokrak and Cameron Tringale shot 66, and Dustin Johnson topped the group at 67, a stroke ahead of Jason Day and Jordan Spieth.
Ian Poulter birdied his opening three holes but had to settle for a level-par 70, with Masters champion Sergio Garcia in danger of missing the cut following an opening-round 73. The tournament will move to the new links-style Trinity Forest Golf Club south of downtown Dallas next year.
"It's playing tough out there", Hahn said. "I thought it was very hard to judge the wind and control the ball". "I hit some great shots and rolled a few good putts, so definitely helps out my confidence". His 17-foot birdie try at No. 17 curled by the cup, and he missed a 14-footer on 18.
Among those players missing the projected cut were Hunter Mahan, Bryson DeChambeau, Bryce Molder, J.B. Holmes, Ryo Ishikawa of Japan, Graham DeLaet of Canada, former PGA Championship victor Y.E. Yang of South Korea and Ryan Moore.
Spieth first played a PGA Tour event at age 16 on a sponsor's exemption in the 2010 tournament, and tied for 16th - still his best Nelson finish.
"All week I've been feeling better and better with the putter", said Kokrak. "I just haven't quite dialed in the speed yet".
Janzen had a run of six birdies and a bogey from holes 10-17 while Sluman and Jimenez closed with birdies on the 526-yard par 5. PGA Tour rookie Grayson Murray had the second lowest round of the day, a seven-under 63. I've got to get back into rhythm there. "You just had to contact it correctly". The two-time tour victor saved par with a 24-footer on 14.
Australia's Rod Pampling made four birdies in five holes in a mid-round surge during the Byron Nelson Classic in Texas. He had two bogeys. "I've got to figure out what I'm doing on the greens, first and foremost".
Garcia's start to his title defence did not go according to plan, with four bogeys ensuring he ended the opening round three over the card. "Even a year ago, I didn't play very good around this place and just managed to get a decent score".
"I had a great conversation with my caddy on nearly every hole trying to leave ourselves the best opportunity for a birdie".