Although not an official entrant, Roberta “Bobbi” Gibb became the first woman to run the Boston Marathon. Joining the starting field shortly after the gun had been fired, Gibb finished the race in 3:21:40 to place 126th overall. Gibb again claimed the “unofficial” title in 1967 and 1968.
1972 - Women Official Entrants in Marathon
Although Bobbi Gibb was the first woman to complete the Boston Marathon in 1966, it was not until the 1972 Boston Marathon that women could become official entrants due to a change in AAU rules.