#9-Chase Elliott was fastest during opening practice at Bristol Motor Speedway with a speed of 123.324mph. #54-Kyle Busch was second, followed by: #5-Kevin Harvick, #2-Brian Scott, #22-Ryan Blaney, #42-Kyle Larson, #7-Regan Smith, #3-Ty Dillon, #42-Dylan Kwasniewski, and #6-Trevor Bayne. 43 drivers practiced during the session. See complete results on the Bristol practice 1 speeds page (pdf).
