Road America: #27: Alexander Rossi, Andretti Autosport Honda, #3: Scott McLaughlin, Team Penske Chevrolet, #9: Scott Dixon, Chip Ganassi Racing Honda
#27: Alexander Rossi, Andretti Autosport Honda, #3: Scott McLaughlin, Team Penske Chevrolet, #9: Scott Dixon, Chip Ganassi Racing Honda