The Boston Athletic Association will retire Kathrine Switzer's bib number, 261, in honor of her historic run. She was the first woman to run with a bib.

The Boston Athletic Association on Tuesday officially retired bib number 261, in honor of Kathrine Switzer. She wore 261 in 1967 and yesterday.

Boston Marathon bib number 261 has been imbued with meaning since Kathrine Switzer wore it in 1967, when she became the first woman to be officially registered and run in the race.

The BAA has only retired one other bib number, John Kelley's No. 61 after he ran his 61st Boston Marathon at age 84 in 1992, in the race's 121-year history.

The retirement of her famous bib number coincided with Switzer’s plans to run the 2017 Boston Marathon.

The event honored the 50th anniversary of Switzer becoming the first woman to finish the Boston Marathon with a bib number.

Kathrine V. Switzer became the first woman with an official number to run the Boston Marathon on April 19, 1967, despite race director Jock Semple’s attempt to forcefully stop her near the two ...

Switzer again donned bib No. 261, the same number she wore in 1967 when she became the first woman to officially participate in the Boston Marathon.

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 ...

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.

The BAA will retire bib no. 261 in honor of pioneer female athlete Kathrine Switzer.

BOSTON (AP) The Boston Marathon will retire Bib No. 261 in honor of Kathrine Switzer. The Boston Athletic Association said Thursday it will no longer assign ...