In 1973, after several rain delays, the Indianapolis 500 raced on a Wednesday. Tragedy would a driver and a crew member.
In 1982, Gordon Johncock won one of the closest Indy 500s in history.
In 1976, Janet Guthrie became the first woman to compete in a NASCAR race.
Also in 1976, Roger Maltbie beat Hale Irwin in a 4-hole playoff to win the inaugural Memorial.