Willis once again powers away on the final lap to secure his second victory in a row.
Uceny holds off a stacked field of elite women milers for her third victory.
What divisions of the Boston Marathon will receive prize money and how much is at stake?
Can I move from one wave to the other wave in the Boston 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.