Register now to save with Early Bird Pricing! New in 2022: 10k + Kids Run.
HOMERESULTS & PHOTOSABOUT USCOMMUNITY IMPACTSCHALLENGESVOLUNTEERPARTNERREGISTER

START & FINISH MAPS

Once available, Start & Finish Maps for our 2022 edition will be available here. Please refer to our 2021 edition maps for a preview of what's to come!

Start Map

Most updated version as of 1/3/22

Finish Map

Most updated version as of 1/3/22

BOULDERTHON®
A STRONGER FASTER BOULDER CO. PRODUCTION
1420 PEARL ST.
BOULDER, CO 80302

© 2021 Stronger Faster Boulder Co.

Boulderthon is a Boston Marathon Qualifying (BQ), USATF Sanctioned Event, measured by a Level A USATF Course Measurer, representing the highest level of certification for a marathon race series.

Based in Boulder, Colorado, Stronger Faster Boulder Co. is a Colorado non-profit organization and federally-recognized as a 501(c)(3) tax-exempt foundation, EIN # 84-2863972. Donations and contributions are tax-deductible as allowed by law.