1970 Indianapolis 500 1970 Indianapolis 500 The 54th 500 Mile International Sweepstakes was held at the Indianapolis Motor Speedway in Speedway, Indiana on Saturday, May 30, 1970. Al Unser, Sr. dominated the race, winning the pole position and leading 190 laps en route to victory. He joined his brother Bobby as the first duo of brothers to win the Indianapolis 500. It was the first of four victories for Al at Indianapolis. Car owner Parnelli Jones, who won the race as a driver in 1963, became the second individual (after Pete DePaolo) to win separately as both a driver and as an owner.
1931 Indianapolis 500 1931 Indianapolis 500 The 19th International 500-Mile Sweepstakes Race was held at the Indianapolis Motor Speedway on Saturday, May 30, 1931. Race winner Louis Schneider, who led the final 34 laps, was accompanied by riding mechanic Jigger Johnson. The start of the race was delayed two hours due to rain. Defending race winner Billy Arnold charged from 18th starting position to lead the race by lap 7. Arnold, who had dominated the 1930 race (led 198 laps), proceeded to lead the next 155 laps, and built up a five-lap lead over second place. His rear axle broke on lap 162.