#29-Ryan Blaney was fastest during opening practice at Martinsville Speedway with a speed of 95.185mph. #20-Gray Gaulding was second, followed by #33-Brandon Jones, #92-Austin Hill, #98-Johnny Sauter, #32-Alex Guenette, #88-Matt Crafton, #21-Joey Coulter, #77-German Quiroga, and #02-Tyler Young. 38 drivers practiced during the session. See complete results on the Martinsville practice 1 speeds page (pdf).
