#4- Christopher Bell was fastest during the opening practice for Friday’s Camping World Truck Series race at Iowa Speedway at 135.257mph. #29-Chase Briscoe, #97-Jesse Little, #8-John Hunter Nemechek, #13-Cody Coughlin, #19-Austin Cindric, #27-Ben Rhodes, #21-Johnny Sauter, #99-Brandon Jones, and #24-Justin Haley were the remainder of the top-10. 26 drivers practiced during the session. See complete results on the Practice 1 speeds (pdf)
