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Best Fort Collins, Colorado Half Marathon Races

View some of the best Half Marathon races in Fort Collins, Colorado! RaceMob's race calendar allows you to find races that suits your needs. Use our advanced filters below or calendar on the right, and discover new races. We try to maintain up to date information, and rely heavily on our community of volunteers. If you find a race that we're missing, use the "Suggest Race" button on the right. Find RaceMob discounts that others have added or add deals that you've discovered.

    • 1/2M

    Louisville, CO

    43.45 miles away

    I'm Attending

    Arctic Prairie Dog Half, 10k & 5k

    Prairie Dog Half - Louisville - ALL info (including swag, start times, location, awards, etc) can be found on the race's website!

    • 1/2M

    Louisville, CO

    43.45 miles away

    I'm Attending

    Arctic Prairie Dog Half, 10k & 5k

    Prairie Dog Half - Louisville - ALL info (including swag, start times, location, awards, etc) can be found on the race's website!

    • 1/2M

    Longmont, CO

    29.94 miles away

    I'm Attending

    Longmont Half & 5k (LM Half)

    www.LMHalf.com Celebrate Independence Day with us, and join the Half Marathon or 5k distance!  Walkers and Runners of all abilities welcome! Half Marathoners start at 6 AM - finish line closes at 09:30 AM.  If you'd like more time, contact us (I...

    • 1/2M

    Estes Park, CO

    26.44 miles away

    I'm Attending

    Rocky Mountain Half Marathon

    Escape to the mountains, breathe in crisp, fresh air, and enjoy a vacation unlike any other when you join us for this scenic run in historic Estes Park, Colorado, just outside Rocky Mountain National Park.If you've ever considered registering for ...

    • 1/2M

    Erie, CO

    36.53 miles away

    I'm Attending

    Erie Half & 5k

    www.ErieHalf.com Join us for the Erie Half and 5k!  The event features both a half marathon and 5k course. Half Marathoners start at 7:00 AM - finish line closes at 10:30 AM.  If you'd like more time, contact us ([email protected]) and we'll st...

    • 1/2M

    Brighton, CO

    46.71 miles away

    I'm Attending

    Adams Half & 5k

    Join us for the Adams Half & 5k in September!  This race is chip timed. This year's event features both a 5k and 13.1 out and back course from Riverdale Regional Park along the Platte River Trail. Celebrate autumn with us, and join the Half M...

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