#31-Chase Pistone was fastest during opening practice at Iowa Speedway with a speed of 132.142mph. #54-Sam Hornish, Jr. was second, followed by: #7-Regan Smith, #62-Brendan Gaughan, #42-Dylan Kwasniewski, #20-Michael McDowell, #60-Chris Buescher, #6-Trevor Bayne, #29-Kenny Wallace, and #2-Brian Scott. 34 drivers practiced during the session. See complete results on the Iowa practice 1 speeds page (pdf).
