Iowa: #12: Ryan Blaney, Team Penske, Advance Auto Parts Ford Mustang #5: Kyle Larson, Hendrick Motorsports, HendrickCars.com Chevrolet Camaro #24: William Byron, Hendrick Motorsports, Liberty University Chevrolet Camaro #4: Josh Berry, Stewart Haas Racing, Overstock.com Ford Mustang #6: Brad Keselowski, RFK Racing, King's Hawaiian - Casey's Ford Mustang #14: Chase Briscoe, Stewart Haas Racing, Mahindra USA 30 Years Ford Mustang
#12: Ryan Blaney, Team Penske, Advance Auto Parts Ford Mustang #5: Kyle Larson, Hendrick Motorsports, HendrickCars.com Chevrolet Camaro #24: William Byron, Hendrick Motorsports, Liberty University Chevrolet Camaro #4: Josh Berry, Stewart Haas Racing, Overstock.com Ford Mustang #6: Brad Keselowski, RFK Racing, King's Hawaiian - Casey's Ford Mustang #14: Chase Briscoe, Stewart Haas Racing, Mahindra USA 30 Years Ford Mustang