After a second round of 8-under 62, at TPC Four Seasons, Jason Kokrak vaulted to the top of the leaderboard at the AT&T Byron Nelson, and lead leads the field by five strokes.

Billy Horschel closed with three straight birdies to finish at 5-under, and is alone in second at 7-under. World No. 1 Dustin Johnson finished is at 6-under following a second consecutive 3-under 67, and headlines a group of six players tied at third.

Jordan Spieth missed the cut by one stroke after a 5-over 75 that included a 9 at the par-5 16th hole. It was the first time the Dallas native has missed the weekend at this event.

 
Take a look at the best highlights from round one at the Byron Nelson in Irving, Texas – per the PGA Tour Media.

Credit: PGA Tour Media, Getty Images