Portland: #15: Graham Rahal, Rahal Letterman Lanigan Racing Honda, #3: Scott McLaughlin, Team Penske Chevrolet, #26: Colton Herta, Andretti Autosport w/ Curb-Agajanian Honda, #9: Scott Dixon, Chip Ganassi Racing Honda, start
#15: Graham Rahal, Rahal Letterman Lanigan Racing Honda, #3: Scott McLaughlin, Team Penske Chevrolet, #26: Colton Herta, Andretti Autosport w/ Curb-Agajanian Honda, #9: Scott Dixon, Chip Ganassi Racing Honda, start