Sonoma: Patricio O'Ward, Harding Group Chevrolet, Graham Rahal, Rahal Letterman Lanigan Racing Honda, Will Power, Team Penske Chevrolet, Sébastien Bourdais, Dale Coyne Racing with Vasser-Sullivan Honda, Alexander Rossi, Andretti Autosport Honda, start
Patricio O'Ward, Harding Group Chevrolet, Graham Rahal, Rahal Letterman Lanigan Racing Honda, Will Power, Team Penske Chevrolet, Sébastien Bourdais, Dale Coyne Racing with Vasser-Sullivan Honda, Alexander Rossi, Andretti Autosport Honda, start