July 18 (Reuters) - Scott Piercy birdied the final hole to join playing partner Ricky Barnes in a tie at the top of a congested leaderboard after the third round of the inaugural Barbasol Championship in Auburn, Alabama on Saturday.
American Piercy knocked in a three-footer at the par-four 18th to complete a six-under 65 after a sweltering day on the Grand National layout at the Robert Trent Jones Golf Trail, finishing level with compatriot Barnes (65) at 13-under 200.
Piercy covered the back nine in two-under 34 to remain on track for his third PGA Tour victory but will have to contend with a Sunday shoot-out as 15 players head into the final round no more than four shots off the pace.