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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

    Westminster, CO

    48.0 miles away

    I'm Attending

    Pioneer Prairie Dog Half, 10k & 5k

    The Westminster event supports Growing Home of Westminster.  Bring 5 items for donation on race day and you'll be entered into a raffle for great prizes!

    • 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...

    • 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...

    • 1/2M

    Louisville, CO

    42.48 miles away

    I'm Attending

    Louisville Trail Half Marathon, 10K, 5K event

    THE SUMMER SERIES FINALE The Annual ERS Finale... The 8th Annual Louisville Trail Half Marathon, 10K, 5K has been the Endurance Race Series' Summer finale and largest event the past 7 years... The course is a mostly flat with a beautiful, yet cha...

    • 1/2M

    Fort Collins, CO

    1.1 miles away

    I'm Attending

    The Long View Marathon

    Join us on a journey from Fort Collins to Loveland. The marathon begins at City Park in Fort Collins and ends at the Foote Lagoon in downtown Loveland. The half marathon starts at Fossil Creek Park and also ends in downtown Loveland. Along the way...

    • 1/2M

    Loveland, CO

    13.18 miles away

    I'm Attending

    Long View Marathon & Half

    Showcasing a unique city-to-city trail connection, The Long View Marathon and Half Marathon runs from Fort Collins to Loveland. Together, Gnar Runners and Sweetheart City Racing bring a unique collaboration to Colorado’s running scene in this one-...

    • 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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