Iowa I: Olympic Gold Medal winner gymnast Shawn Johnson waves the green flag at the start. #10: Alex Palou, Chip Ganassi Racing Honda, #7: Felix Rosenqvist, Arrow McLaren SP Chevrolet, #9: Scott Dixon, Chip Ganassi Racing Honda, #48: Jimmie Johnson, Chip Ganassi Racing Honda, #26: Colton Herta, Andretti Autosport w/ Curb-Agajanian Honda, #15: Graham Rahal, Rahal Letterman Lanigan Racing Honda, #29: Devlin DeFrancesco, Andretti Steinbrenner Autosport Honda
Olympic Gold Medal winner gymnast Shawn Johnson waves the green flag at the start. #10: Alex Palou, Chip Ganassi Racing Honda, #7: Felix Rosenqvist, Arrow McLaren SP Chevrolet, #9: Scott Dixon, Chip Ganassi Racing Honda, #48: Jimmie Johnson, Chip Ganassi Racing Honda, #26: Colton Herta, Andretti Autosport w/ Curb-Agajanian Honda, #15: Graham Rahal, Rahal Letterman Lanigan Racing Honda, #29: Devlin DeFrancesco, Andretti Steinbrenner Autosport Honda