The Colorado Marathon

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301 Maple St., Fort Collins CO

Sunday, May 4th, 2025

🏃‍♂️ The Colorado Marathon

Join us for the Colorado Marathon in Fort Collins this May! Our annual event takes place in the stunning Poudre Canyon and the gorgeous natural areas of Fort Collins in Northern Colorado.

📅 Date and Location

Date: 2025-05-04
Location: 301 Maple St., Fort Collins, CO
Event URL: Colorado Marathon Registration

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Each year, thousands of runners participate in this incredible event to test their endurance, push themselves to new heights, set new PRs, and race alongside other running enthusiasts who share a passion for health and fitness. Many even run Colorado’s fastest race to qualify for the Boston Marathon! Regardless of why you join us at this momentous event, we’re happy to have you!

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With one of the most scenic downhill courses in the state, four different distances to choose from, and a vibrant community-centric atmosphere, this is one race you don’t want to miss. But be quick! Our event sells out quickly, so register early to save your spot in the race. Keep reading to learn all the details about this thrilling running adventure!

⚠️

Half Marathon Update: We are down to less than 10 Charity Fund Entries. Once these are sold out, there will be no additional opportunity to register for the half marathon.

Half Marathon Update as of 02/26/25: Standard half marathon entries have completely sold out. We have now moved to a very limited number of Charity Fund entries, which are $300 for the half marathon.

Full Marathon Update: As of 01/31/25, the full marathon has officially sold out. There is no remaining opportunity to sign up for this distance and there is no waitlist.

Charity Fund Entries: Once a race reaches capacity, a limited number of entries are reserved for the "Charity Fund." These entries are double the price and all proceeds go to local charities and non-profits that are involved in the race.

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You will be able to register or change distances at the expo on Friday or Saturday of race weekend. However, if a race has reached capacity, there will be no new registration or changes to that distance.

Questions? Visit our website for more information here.