Spieth out at Nelson; Kokrak has career-best 62, leads by 5

Jason Kokrak shot a bogey-free 8-under 62 Friday for a record five-stroke lead after two rounds at the AT&T Byron Nelson, where local favorite Jordan Spieth missed the cut for the first time at the tournament where he made his debut as a 16-year-old high school junior. Kokrak, the 128th-ranked player in the world, matched the Nelson's 36-hole record at 12 under after his career-best scoring round, and no one has ever had a bigger lead there after two rounds. Billy Horschel was second at 7 u...