SILVIS, Illinois — For every good shot Jordan Spieth hit, a bad one seemed to follow.
Spieth's struggles left him eight shots back after the first round of his final British Open tuneup.
Justin Thomas and Nicholas Thompson each shot an 8-under-par 63 to share the lead at the John Deere Classic on Thursday. Spieth was at even-par 71 in his first round since winning the U.S Open.
Spieth, who will go for his third straight major title next week at St. Andrews, had three bogeys in a four-hole stretch and missed a 15-foot birdie putt on No.