RaceMob

Upcoming 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

    Loveland, CO

    45.09 miles away

    I'm Attending

    Long View Marathon & Half

    / 1 RaceMobber Scheduled

    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

    Brighton, CO

    14.41 miles away

    I'm Attending

    Adams Half & 5k

    Right in your backyard, Adams County! If you've not visited the Adams County Fairgrounds, you're in for a treat.  Far enough from the foothills to be FLAT, but close enough to be BREATHTAKING, this course meanders past lakes and rivers on concret...

    • 1/2M

    Windsor, CO

    49.77 miles away

    I'm Attending

    Windsor Marathon, Half Marathon, 10K & 5K

    Welcome to the third annual Windsor CO Race! This event starts and ends at The Island at Pelican Lakes in Water Valley, with a great after party including a gourmet breakfast, drinks, music and a live band! Tour beautiful Windsor on a variety of t...

    • 1/2M

    Greeley, CO

    47.85 miles away

    I'm Attending

    Lukiyo Greeley Running Festival

    Gather your friends and family as we head to Greeley, Colorado for a series of races in partnership with the University of Northern Colorado. Come celebrate the end of Latino Heritage Month with your choice of a 5k, 10k, or Half Marathon. For tho...

    • 1/2M

    Westminster, CO

    11.49 miles away

    I'm Attending

    Westy Half & 5k

    Join us for the Westy Half in October where finishers from every distance earn a MEDAL! This year's event features an out and back course from the trail entrance at Front Range Community College Library Parking Lot headed North on Big Dry Creel T...

    • 1/2M

    Brighton, CO

    14.41 miles away

    I'm Attending

    Runs With Scissors Races

    Saturday, April 8, 2023Half Marathon, Marathon and 50K all Start at 7:00 a.m. The race will be held at Riverdale Regional Park, Pavilion B, in Brighton Colorado.  Proceeds benefit INSPIRATIONFIELD.  INSPIRATIONFIELD works with the developmentally...

    • 1/2M

    Arvada, CO

    10.19 miles away

    I'm Attending

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

    The Arvada event supports Community Table, an Arvada Food bank.  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

    Castle Rock, CO

    23.12 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. Part of the Prairie Dog Half race series, join us in July as we race through Castle Rock along the East Plum Creek Trail.  Visit www.PrairieDogHalf.com for more...

    • 1/2M

    Erie, CO

    22.1 miles away

    I'm Attending

    Erie Half & 5k

    Join us for the Erie Half and 5k!  The Hometown Race Series features half marathons and 5k distance events in outlying communities outside the Denver and Boulder metro areas.  LOOK UP! At the Erie event, we often see the early morning skies with...

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