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Upcoming 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

    Westminster, CO

    48.0 miles away

    I'm Attending

    Westy Half & 5k

    www.WestyHalf.com Join us for the Westy Half in October!  This race is chip timed. This year's event features an out and back course from Westminster Promenade Terrace to Standley Lake and back. Celebrate autumn with us, and join the Half Marath...

    • 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...

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