Brian Campbell secured his second play-off victory of the season on the PGA Tour by beating Emiliano Grillo at the first extra hole of the John Deere Classic.
Defending champion Davis Thompson established a one-shot lead after the third round of the John Deere Classic as Ireland's Seamus Power moved into contention.
Doug Ghim holed out from the fairway for an eagle for the second straight day to help him retain the lead at the halfway stage of the John Deere Classic.