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
1923 Indianapolis 500 were injured. Four-lap (10 mile) qualifying runs were utilized. 1923 Indianapolis 500 The 11th International 500-Mile Sweepstakes Race was held at the Indianapolis Motor Speedway on Wednesday, May 30, 1923. After winning previously in 1921, Tommy Milton became the first multiple winner of the Indianapolis 500. Howdy Wilcox (the 1919 winner) drove relief for Milton in laps 103-151. During the break, Milton had to have his hands bandaged due to blisters, and changed his shoes due to crimping of his toes. On lap 22, Tom Alley (driving Earl Cooper's entry) wrecked on the backstretch, going through the wall, and killed