A few miles into the run, Semple chased down Switzer and attempted to take away her official race number.
Top-seeded distance runner Lemi Berhanu Hayle, of Ethiopia, participates in a Boston Marathon media availability Friday, April 14, 2017, in advance of Monday's race in Boston.
"It was really emotional for me", Hasay told WBZ-TV.
"I had to put back something which was not mine", Kiplagat told reporters. It will be retired in Switzer's honor.
Those times are now official in the wheelchair races. "We have the podium for both men and women, so the future is great".
It was a big day for debut runners at Boston, according to Runner's World.
Sanchez ran his first marathon in Washington D.C.in 2015. She led them through the first 5K in 17:45.
Her bib number would come to represent fearlessness in the face of adversity for female runners ever since.
Rupp, 30, a three-time Olympian who won bronze in the marathon in Rio de Janeiro last summer, finished in a personal-best time of 2 hours, 9 minutes, 58 seconds in his Boston debut. She and Semple eventually became good friends. The race director at the time reportedly even jumped on the course in attempt to stop her from crossing the finish line. In her later races, no subterfuge was necessary. She passed 35K in 1:59:15. Then, she heard the sound of leather shoes, a distinctly different noise from the patter of rubber soles, and knew something was wrong.
Support soon eclipsed the fallout and she became a celebrity.
The women have delivered another world best in the Boston Marathon wheelchair races. He edged out Portland runner Galen Rupp by 21 seconds.
Edna Kiplagat, the victor of the 2017 Boston Marathon, is seen here second from left at the race's six-mile mark.
If he finishes, the 32-year-old Kenyan will be the first professional to complete all six major marathons plus the world championships and the Olympics.
Along the way, 261 became a rallying cry among female runners. They will carry coverage through to the end of the marathon for elite men and women, a group that includes Hayle and Baysa.
No. 261 was the bib she wore when she changed the race forever, back when the famous race had less than 750 entrants - all men.
Why didn't she drop out of the 1967 race?
"Women who are empowered can change the whole society around them for the better and running - I know it sounds insane - but one foot in front of the other, it's a transformational experience".
"In 2013, I was a spectator just like the three victims and when I saw the 8-year-old. the first thing in my mind was that could have been my daughter", said Keflezighi.