American Ryan Moore holds a one-stroke lead at the John Deere Classic, shooting his third-straight six-under 65 at TPC Deere Run.
Bad light suspended play in the second round, but the third is complete with Moore on 18 under, leading by a single stroke over big movers, Ben Martin and Morgan Hoffmann.
The American pair are tied for second at 17 under, after both shot nine-under-par 62s in the third round.
Martin particularly started in good touch, posting birdies on his five opening holes to set up a productive round.
Wesley Bryan, who started the day in the lead, fell four places after posting a one-under-par 70.
Starting the third round with a bogey, Bryan recovered before a double-bogey on the 15th put a further blemish on his day.
A rollercoaster back nine from Steve Marino, with three bogeys to complement four birdies for a score of 70, meant he dropped five places to end the third round at 12 under.
Another big mover in the field is South Korean Kim Meen-whee, who shot a seven-under-par 64 in the third round after a 67 to leap 18 spots up the leaderboard.
After shooting a 64 in the second round, 36-year-old American Johnson Wagner remains in fourth place following a solid 67.