Iowa I: #06: Helio Castroneves, Meyer Shank Racing Honda #27: Kyle Kirkwood, Andretti Autosport Honda #21: Rinus VeeKay, Ed Carpenter Racing Chevrolet
#06: Helio Castroneves, Meyer Shank Racing Honda
#27: Kyle Kirkwood, Andretti Autosport Honda
#21: Rinus VeeKay, Ed Carpenter Racing Chevrolet