J.T. Poston fired a 6-under 66 for the second consecutive round Saturday to take a one-shot lead into the final day of the Barbasol Championship in Nicholasville, Ky.
Poston posted a second consecutive clean card, with six birdies at Keene Trace Golf Club to sit at 19-under 197 for the tournament.
Luke List carded a 65 to sit alone in second at 18 under.
James Hahn made the biggest leap on moving day, posting a scorching 60 to move into a third-place tie with Joseph Bramlett (67), two shots back at 17 under. Hahn had two eagles and eight birdies in his bogey-free round.
Seamus Power (67) and David Lingmerth (65) are tied for fifth three shots back, and five players are tied for seventh at 15 under, four shots back of the leader.
Poston and List will be the final pairing on Sunday.
List also had a clean round. He posted two birdies on the front before catching fire on the back, with five birdies.
But the round of the day went to Hahn, who posted his first birdie on No. 4. He carded his first eagle on No. 5 and then made four birdies in a row, holes 7-10. He would make another three birdies and another eagle.