The Boulderthon® was created by an avid New York Road Runners runner to spread the joy of marathons.
We believe Boulder, one of the great running hubs of the country, deserves a signature, premier marathon. We believe:
- Marathons bring people together, and are some of the most fun, memorable & inspiring days of the year in cities, for runners and spectators alike
- Promoting the tremendous power of running to inspire, transform & improve lives
- Sharing the community & beauty of Boulder, CO with the world
- Bringing people together over health & wellness for uniquely memorable experiences