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Every movement has a symbol. Ours is 261. For nearly 60 years, that number has represented courage, determination, and the power of women to challenge limits and create change. What began as…

Every movement has a beginning. Ours began with one woman who refused to step off the course. Kathrine Switzer‘s historic run in the 1967 Boston Marathon challenged more than a race. It…

All runners need to take steps to keep themselves safe, but if you have an ongoing medical condition, it’s even more important. Whether you have diabetes, asthma, epilepsy, or another health issue that might interfere with…

At 261 Fearless, we believe that lasting change happens when passionate people come together around a shared purpose. That belief is at the heart of our newest initiative: the 261 Fearless Partnership…

We all know our lungs are vital to everyday life but now they’re potentially under serious attack from a virus, our respect for them has grown further. Biology lessons may be a…

Cardiovascular disease remains the leading cause of death worldwide, but one of the most effective preventive “medicines” is available to nearly everyone: regular physical activity. The evidence is remarkably consistent. Whether it’s walking, cycling, strength…

Artificial Intelligence (AI) can feel like a scary topic. People are worried it might take over their jobs, and it’s hard to determine if images and videos we see are real or AI generated. It might…

We are Boston bound! Thanks to our incredible partners, we have a weekend packed with fearlessness, fabulousness, and fun! Check out our events below and see where you can join us over…

Every April, we celebrate another run around the sun with the birthday of 261! Fifty-nine years ago, Kathrine Switzer took a step that changed the future for women in sport. When she…

“There is no such thing as bad weather; only inappropriate clothing.” Kathrine Switzer’s tips on running clothing for any weather. Read now & get ready for your next 261 run!

Speed is not just effort. It’s neuromuscular precision. Every fast movement — sprinting, jumping, quick direction changes —  depends on how efficiently your muscles and nervous system work together. The Brain Starts the…

Run the City. Power the Movement. If you: -Are passionate about supporting women -Believe in the power of running to spark confidence and change -Know that one person can ignite something bigger…