#12-Ryan Blaney was fastest during opening practice at Homestead-Miami Speedway with a speed of 167.942mph. #11-Elliott Sadler was second, followed by: #20-Matt Kenseth, #9-Chase Elliott, #7-Regan Smith, #10-Ross Chastain, #54-Kyle Busch, #22-Brad Keselowski, #42-Kyle Larson, and #2-Brian Scott. 42 drivers practiced during the session. See complete results on the Homestead practice 1 speeds page (pdf).
