#33-Paul Menard was fastest during the opening test session at Kentucky Speedway with a speed of 173.969mph. #2-Brian Scott was second, followed by: #12-Ryan Blaney, #9-Chase Elliott, #22-Brad Keselowski, #7-Regan Smith, #5-Kevin Harvick, #20-Matt Kenseth, #3-Ty Dillon, and #6-Trevor Bayne. 28 drivers practiced during the session. See complete results on the Kentucky practice 1 speeds page (pdf).
