Notes: Scheduled for 54 laps; ended early because of extreme rain.
Wilson Fittipaldi was injured in an accident on August 15 and was unable to compete.
Brian Henton was uninjured in an accident on August 16 but was unable to repair the car.
Mark Donohue crashed in the morning warmup and died from his injuries on August 19.
Track marshal Manfred Schaller was also injured in the accident and died on August 19 as well.