1987 Indianapolis 500 Al Unser, Sr. held off Roberto Guerrero by 4.496 seconds, to win his record-tying fourth Indianapolis 500 victory. By leading the final 18 laps, Unser, Sr. tied the all-time record for most laps led in Indy 500 competition, and, at 47 years of age, also became the oldest winner of the 500. Mario Andretti's dominance of the month, and subsequent failure to achieve victory, was largely unprecedented in modern times. He led the practice speed chart on 11 of the 17 days (he participated in only 13 days), won the pole position, won the pit stop contest, had the fastest
1942 Indianapolis 500 1942 Indianapolis 500 The 1942 Indianapolis 500 was scheduled for Saturday May 30, 1942, at the Indianapolis Motor Speedway. It was to be the 30th annual running of the famous automobile race. The race was canceled due to the United States involvement in World War II. In total, the Indianapolis 500 was not held from 1942 to 1945. This was the second instance in which the Indianapolis Motor Speedway suspended the annual running of the Indianapolis 500. During World War I the Speedway management voluntarily suspended competition in 1917–1918. However, for World War II, the decision to cancel the race