#3-Austin Dillon was quickest during happy hour for the Great Clips / Grit Chips 300 with a speed of 181.023mph. He was followed by: #20-Brian Vickers, #22-Joey Logano, #6-Trevor Bayne, #7-Regan Smith, #77-Parker Kligerman, #54-Kyle Busch, #30-Nelson Piquet, Jr., #60-Travis Pastrana, and #99-Alex Bowman. 36 drivers participated in the session. See complete results on the Atlanta practice 2 speeds page (pdf) .
