Defending champion Zach Johnson shot a 7-under 64 and is tied with Camilo Villegas for the lead after Thursday's opening round of the John Deere Classic.
It was the 17th straight round in the 60s at TPC Deere Run for Johnson, who grew up roughly 100 miles away in Cedar Rapids, Iowa.
Matt Bettencourt made the field as a late alternate and shot a 6-under 65.
He's tied for second with Daniel Summerhays and Brendon de Jonge.
Boo Weekley is among a pack of players at 5-under 66.
Three-time tournament champion Steve Stricker is at 4-under 67 heading into Friday's second round.