Um, Who is Rosie Ruiz?

April 21, 1980

On April 21, 1980, Bill Rodgers became the first runner in 56 years to capture three consecutive Boston Marathon titles when he won with a time of 2:12:11. That was not the highlight of the day, however. Of the 448 female participants, Rosie Ruiz of New York City won the marathon with a time of 2:31:56!
After marathon officials reviewed photographs and conducted interviews, Rosie Ruiz was stripped of the women's title on April 29 for entering the race near the end. Ruiz, an administrative assistant, explained she woke with a lot of energy. Enough energy to shave 25 minutes off her previous marathon time.

Jacqueline Gareau of Canada was declared the winner.