In 1967 Switzer became the first woman to officially run the Boston Marathon. Yet, the way it all unfolded, she says, was different than you'd think. "I wasn’t trying to prove anything.

An authentic photograph shows Kathrine Switzer, the first woman to run the Boston Marathon with an official number, being grabbed by Jock Semple, a marathon official who was trying to pull her out ...

Kathrine Switzer (261) in action as BAA co-director Jock Semple attempts to tear off Switzer's bib during the 1967 Boston Marathon. Sports Illustrated/Getty Images By Chris Greenberg ...

Kathrine Switzer ran the Boston Marathon in the same bib number that a race official tried to rip off her in an iconic photo from the 1967 race.

In this April 19, 1967, file photo, Kathrine Switzer, of Syracuse, N.Y., center, was spotted early in the Boston Marathon by Jock Semple, center right, who tried to rip the number off her shirt ...

Kathrine Switzer was involved in an iconic moment at the 1967 Boston Marathon; she was attacked by race director Jock Semple who tried to throw her out while she was running, but the pair later ...

In 1967, Kathrine Switzer ran the Boston Marathon, even though it was a men's-only event. She tells NPR's Lulu Garcia-Navarro about that race, and training to run it again in 2017, at age 70.

We spoke to Kathrine Switzer about her best running advice, those iconic photos from the Boston Marathon, and how she still gets the job done. Kathrine Switzer shares why she forgave the man who ...

Kathrine Switzer completed her first historic Boston Marathon in 4 hours and 20 minutes, despite a race official’s attempt to push her out of the 26.2-mile race.

Taking different paths to the same goal, Bobbi Gibb and Kathrine Switzer outran Boston Marathon tradition and trampled the notion that women were too frail for a 26.2-mile race.

Kathrine Switzer, who was the first official woman entrant in the Boston Marathon 50 years ago, waves to the crowd at the start of the 2017 Boston Marathon in Hopkinton, Mass., April 17, 2017.