Detroit: #45: Christian Lundgaard, Rahal Letterman Lanigan Racing Honda, #3: Scott McLaughlin, Team Penske Chevrolet, #2: Josef Newgarden, Team Penske Chevrolet, and #30: Jack Harvey, Rahal Letterman Lanigan Racing Honda
#45: Christian Lundgaard, Rahal Letterman Lanigan Racing Honda, #3: Scott McLaughlin, Team Penske Chevrolet, #2: Josef Newgarden, Team Penske Chevrolet, and #30: Jack Harvey, Rahal Letterman Lanigan Racing Honda