Detroit: #77 Mazda Team Joest Mazda DPi, P: Oliver Jarvis, Tristan Nunez, #31 Action Express Racing Cadillac DPi, P: Eric Curran, Felipe Nasr, #55 Mazda Team Joest Mazda DPi, P: Jonathan Bomarito, Harry Tincknell
#77 Mazda Team Joest Mazda DPi, P: Oliver Jarvis, Tristan Nunez, #31 Action Express Racing Cadillac DPi, P: Eric Curran, Felipe Nasr, #55 Mazda Team Joest Mazda DPi, P: Jonathan Bomarito, Harry Tincknell