(Silvis, IL)  --  Chesson Hadley shot a bogey-free eight-under on Thursday to tie for the lead after the first round of play at the John Deere Classic at TPC Deere Run in Silvis, Illinois.  Sebastian Munoz had nine birdies, but bogeyed eight to tie for the lead after 18.  Hank Lebioda, Chez Reavie and Camilo Villegas are all one-stroke back.  Defending champion Dylan Frittelli is five-strokes back at three-under.