Cars using Goodyear tires swept the top four positions, and Goodyear won their second 500 in row. Officials allowed the top five cars to finish the full 500 miles, then flagged the rest of the field off the track. This would be the final 500 in which finishers were named to the prestigious Champion Spark Plug 100 mph Club. Unlike the 1967 race, the Turbine did not run away from the field in 1968. Bobby Unser led the most laps in the Offenhauser, but Joe Leonard spent most of the day on Unser's tail, in the top three. Graham Hill ran in the top five, but complained that he lacked speed down the long straights, and was running 4th when he wrecked. Art Pollard, in the third Turbine, spent most of the day in the top ten before the car quit, but was never really a factor for the win.