Riverside: Mario Andretti, Holman & Moody Inc, McLaren M6B Ford, leads George Eaton, McLaren M12 Chevrolet, Chuck Parsons, Carl A. Haas Racing Team, Lola T163B Chevrolet, and Frank Gardner, Alan Mann Racing, Open Sports Ford.
Mario Andretti, Holman & Moody Inc, McLaren M6B Ford, leads George Eaton, McLaren M12 Chevrolet, Chuck Parsons, Carl A. Haas Racing Team, Lola T163B Chevrolet, and Frank Gardner, Alan Mann Racing, Open Sports Ford.