Runner Universe - In 1967, Kathrine Switzer made history by becoming the first woman to run the Boston Marathon with an official race number. She did so despite the efforts the race

Kathrine Switzer: First woman to officially run Boston Marathon on

Runner Universe - In 1967, Kathrine Switzer made history by

Runner Universe - In 1967, Kathrine Switzer made history by

Kathrine Switzer Worksheets The Boston Marathon, Other Endeavors

Kathrine Switzer: The First Female to 'Officially' Run the Boston

New York City Marathon: A Historical Monument For Women - BeHerSports

Live: The latest news from the 2017 Boston Marathon

Runner Universe - In 1967, Kathrine Switzer made history by

Kathrine Switzer Worksheets The Boston Marathon, Other Endeavors

Boston Marathon 2016 – BU News Service

11 women who were the 'first' of their kind