Boston Athletic Association

boston_marathon_40697.jpg

Kathrine Switzer, middle with fist up, the first official woman entrant in the Boston Marathon 50 years ago, cheers at a news conference, Tuesday, April 18, 2017, in Boston, where her bib No. 261 was retired in her honor by the Boston Athletic Association. Switzer is surrounded by runners with her 261 Fearless foundation, and at far left is, BAA President Joann Flaminio. (AP Photo/Elise Amendola)