Iowa I: Olympic Gold Medal winner gymnast Shawn Johnson waves the green flag at the start. #51: Takuma Sato, Dale Coyne Racing with RWR Honda, #28: Romain Grosjean, Andretti Autosport Honda, #8: Marcus Ericsson, Chip Ganassi Racing Honda, #7: Felix Rosenqvist, Arrow McLaren SP Chevrolet
Olympic Gold Medal winner gymnast Shawn Johnson waves the green flag at the start. #51: Takuma Sato, Dale Coyne Racing with RWR Honda, #28: Romain Grosjean, Andretti Autosport Honda, #8: Marcus Ericsson, Chip Ganassi Racing Honda, #7: Felix Rosenqvist, Arrow McLaren SP Chevrolet