#3 Austin Dillon was fastest during opening practice at Bristol Motor Speedway with a speed of 124.186mph. #99-Alex Bowman was second, followed by: #7-Regan Smith, #22-Brad Keselowski, #54-Kyle Busch, #30-Nelson Piquet, #6-Trevor Bayne, #31-Justin Allgaier, #33-Kevin Harvick, #20-Brian Vickers. 42 drivers practiced during the session. See complete results on the Bristol practice 1 speeds page (pdf) .
