Joseph Paul Leonard was an American professional motorcycle racer and racecar driver.

The 53rd International 500 Mile Sweepstakes was an auto race held at the Indianapolis Motor Speedway in Speedway, Indiana on Friday, May 30, 1969. It was the third round of the 1969 USAC Championship Car season. Polesitter A. J. Foyt led the race in the early stages, looking to become the first four-time winner of the 500. Near the halfway point, however, a lengthy pit stop to repair a broken manifold put him many laps down. Despite a hard-charging run towards the end, he wound up managing only an eighth-place finish, 19 laps down. Lloyd Ruby, a driver with a hard-luck reputation at the Speedway, was leading the race just after the midpoint. During a pit stop, he pulled away with the fueling hose still attached, ripped a hole in the fuel tank, and was out of the race. The incident put Mario Andretti in the lead for rest of the way.