By Lauren HollandUpdated November 2026
The first female to run the Boston Marathon was Kathrine Switzer, who entered under the initials “K.V. Switzer” and ran the 1967 race with her number visible on her bib. She finished the course, though officials tried to pull her from the road during the race. Her run is often credited with opening the event, and women’s distance running more broadly, to a much wider field.
Why Kathrine Switzer’s 1967 Run Mattered
At the time, the Boston Marathon had no official rule barring women, but it had no women’s division and no women’s entries. The Amateur Athletic Union and the race organizers did not expect women to run 26.2 miles, and many believed the distance was physically unsafe for them. Switzer registered using only her initials, which was the usual practice for any entrant whose gender might not be welcomed. Her bib number, 261, was the one that officials later tried to take from her.
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During the race, a race official, Jock Semple, reportedly tried to physically remove her from the course after spotting her on the road. Her boyfriend at the time, Tom Miller, a hammer thrower, shielded her and kept her moving. She finished in just over four hours, a time that was far outside the top placings but was a complete, official-length run by a woman in a men’s race.
The photographs from that day spread widely, and they helped build the case that women should be allowed to compete in the sport at its highest levels. Switzer later became a long-running advocate for women’s participation in running and was involved in the push for women’s events at the Olympic level. For a deeper look, Four Week 5K Training Plan: Run Your First 5K in 28 Days covers this in detail.
What Made the Entry Possible
Three factors combined to make Switzer’s run happen, and they are worth understanding if you want to know how the sport changed:
- Entry rules were not written to exclude women. The race accepted entries by name and initials, so a woman could register without an explicit gender barrier being stated.
- There was no official women’s division. Women who wanted to run had to compete in the open field, with no separate timing, awards or recognition.
- Enforcement was informal. The objection came from individual officials acting on their own judgment, not from a written prohibition, which made the situation harder to address through the rulebook.
Women were permitted to run official Boston Marathon results in subsequent years, and an official women’s field followed. For context on how women’s racing developed beyond Boston, see First Female Marathon Winner: Who She Was and How Women's Racing Changed and Who Was the First Woman to Run a Marathon? Kathrine Switzer's 1967 Race.
What It Took to Finish in 1967
Switzer’s run was a serious endurance effort, not just a symbolic one. Finishing a marathon at that time required the same planning any runner would use: a long-run progression, fueling and pacing across a hilly New England course. Boston’s course includes significant downhill early and a series of climbs in the middle and late miles, including the well-known Heartbreak Hill near the end. Runners who go out too fast often struggle badly after the 20-mile mark.
If you are curious how pacing works on this course, First Boston Marathon Winning Time: Records, Course Factors and Results covers the course profile and how elite runners split it. For a sense of what finishing times look like for newer runners, Average First Marathon Time: What Most Beginners Run and Why is a useful reference.
Practical Tips If You Want to Run Boston Yourself
Whether you are inspired by Switzer’s story or planning your own qualifying run, these steps will help you prepare:
- Check the current qualifying standards for your age and gender on the official Boston Athletic Association site, since they change over time.
- Build a base of consistent weekly mileage for at least several months before starting a marathon-specific plan.
- Run a few long runs on hills or rolling terrain to prepare your legs for the course profile.
- Practice your race-day fueling during long runs so nothing new appears on race morning.
- Start conservatively. Holding back in the first 10 miles protects your finish, especially on the downhill opening.
If you are new to the distance, How to Prepare for Your First Half Marathon and Can You Run Your First Marathon Under 2 Hours? Realistic Answer can help you set a realistic goal before you commit to a qualifier. Anyone with a medical condition or who is returning from injury should check with a doctor or sports medicine professional before starting a hard training block.
Related questions
Did Kathrine Switzer finish the 1967 Boston Marathon?
Yes. She finished the race, although her official time was slow by elite standards. Her completion was the important part, since it proved a woman could cover the full distance in the men’s field.
Why did the race officials try to remove her?
The official, Jock Semple, objected to a woman running in a men’s event. There was no written rule against women entering at the time, so the objection was personal and enforcement was informal.
When did women become officially allowed in the Boston Marathon?
Women were permitted to enter and receive official results in the years following 1967, and an official women’s field was established. The exact progression is worth checking against the Boston Athletic Association’s historical records.
Who was the first woman to run a full marathon?
Women had run marathon distances before Switzer, but she is widely recognized for breaking the barrier at Boston, one of the sport’s most established races. For the broader history, see Who Was the First Woman to Run a Marathon? Kathrine Switzer's 1967 Race.
How hard is the Boston course for a first-time marathoner?
It is demanding, mainly because of the downhill start, the hill climbs and the finish. First-timers should prioritize hill training and conservative early pacing rather than chasing a fast split.
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About Lauren Holland
Lauren Holland is part of our editorial team and reviews and edits our marathon & half-marathon guides, checking product details against manufacturer specifications and owner feedback.
