South Korea's Kang fires 61 to grab PGA Byron Nelson lead

South Korea's Kang Sung-hoon fired six birdies in a row on his way to a bogey-free 10-under par 61 Friday to grab a four stroke lead in the second round of the US PGA Byron Nelson tournament.

Kang, seeking his first US PGA title, stood on 16-under 126 after 36 holes at Trinity Forest Golf Club in Dallas, four strokes ahead of Matt Every and Tyler Duncan, who shot a 65 and 66 respectively.

Aided by cool early conditions, the Dallas resident opened with a birdie, his approach at the par-five first landing inches from the cup.

"It was perfect and awesome," Kang said. "I live in Dallas, about 30 minutes from the golf course, and I've never seen weather like this in May. I knew it was going to be cold and windy so I really tried to prepare for how far the ball was going to go this morning and it worked out great."

Kang began his run of six birdies in a row at the par-four fifth, landing his approach inches from the cup. He sank a six-foot birdie putt at the sixth and one half as long at ...