Troy Matteson made 10 birdies Thursday en route to a bogey-free round of 10-under 61 and a three-stroke stroke lead after the first round of the John Deere Classic.
Matteson, a two-time winner on the PGA Tour, birdied five holes on each nine of the TPC Deere Run to better the 7-under 64 of second place Ricky Barnes. Matteson started by making birdies on three of his first four holes and finished with birdies on four of his first five.
He nearly holed out from a bunker on the par-4 ninth for a 60, but settled for par.
Barnes, out in the second group of the day, birdied all three par-5s and two of the four par-3s to pace the morning half of the field.
Robert Garrigus, among a group tied for third at 6-under 65, eagled the par-5 17th by hooking a 270-yard second shot around a tree to set up a 30-foot eagle putt.
Steve Stricker, chasing a fourth straight victory in the Deere, shot a 65 punctuated by an 80-yard wedge for an eagle 2 on the par-4 14th.
Zach Johnson, the highest ranke...