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Popular Denver, Co Half Marathon Races

View some of the best Half Marathon races in Denver, Co! 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

    17.66 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

    17.66 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

    Arvada, CO

    10.5 miles away

    I'm Attending

    Spring Fling Prairie Dog Half, 10k, & 5k

    The Arvada event supports Community Table, an Arvada Foodbank.  Bring 5 items for donation on race day and you'll be entered into a raffle for great prizes from 3W Races and our sponsors! Welcome to the SPRING FLING Prairie Dog Half (part of the ...

    • 1/2M

    Arvada, CO

    10.5 miles away

    I'm Attending

    Spring Fling Prairie Dog Half, 10k, 5k

    The Arvada event supports Community Table, an Arvada Foodbank.  Bring 5 items for donation on race day and you'll be entered into a raffle for great prizes! Welcome to the SPRING FLING Prairie Dog Half!  This spring-time event also features 10k a...

    • 1/2M

    Longmont, CO

    29.41 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

    Castle Rock, CO

    22.95 miles away

    I'm Attending

    Summer Splash Prairie Dog Half, 10k, & 5k

    Welcome to the Summer Splash Prairie Dog Half, 10k & 5k in Castle Rock, Colorado. Visit www.PrairieDogHalf.com for more information on this event: http://prairiedoghalf.com/summer.html  

    • 1/2M

    Erie, CO

    22.34 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...

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