2013 marks the 28th year of John Hancock's landmark sponsorship of the legendary Boston Marathon.
For more information about John Hancock and the Boston Marathon:www.johnhancock.com/bostonmarathon/index.html Twitter @jhboston26
In 2013, adidas continues its commitment to the Boston Athletic Association by playing a key role not only in the Boston Marathon, but in all Boston Athletic Association year-round programs and races.
Dana-Farber Cancer Institute and The Jimmy Fund is the proud presenting sponsor of the annual B.A.A. Half Marathon.
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.