Iowa: #4: Charlie Kimball, A.J. Foyt Enterprises Chevrolet and #98: Marco Andretti, Andretti Herta with Marco & Curb-Agajanian Honda
#4: Charlie Kimball, A.J. Foyt Enterprises Chevrolet and #98: Marco Andretti, Andretti Herta with Marco & Curb-Agajanian Honda