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?
1994 - Uta Pippig
Uta Pippig of Germany won the first of her three consecutive victories in 1994, winning in course record time.