RaceMob

Best Denver, Colorado Half Marathon Races

View some of the best Half Marathon races in Denver, 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

    Castle Rock, CO

    23.12 miles away

    I'm Attending

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

    Welcome to the Summer Prairie Dog Half and 10k.  This summer-time event also features a 5k distance. Visit www.PrairieDogHalf.com for more information on this event: http://prairiedoghalf.com/summer.html  

    • 1/2M

    Fraser, CO

    44.44 miles away

    I'm Attending

    2020 Winter Park Half Marathon & 5K

    Push your limits with these stunning, remote races in the heart of the Rocky Mountains - located just 60 miles outside of Denver! Our Half Marathon and 5K are perfect for athletes of all levels, but will be sure to challenge you as you enjoy the d...

    • 1/2M

    Erie, CO

    22.1 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

    Parker, CO

    20.11 miles away

    I'm Attending

    Labor Day Half Marathon

    For more info and to see our COVID-19 race day plan, please visit the official race website: www.ColoradoRunnerEvents.com

    • 1/2M

    Parker, CO

    20.11 miles away

    I'm Attending

    Labor Day Half Marathon

    For more info and to see our COVID-19 race day plan, please visit the official race website: www.ColoradoRunnerEvents.com

    • 1/2M

    Longmont, CO

    30.43 miles away

    I'm Attending

    American Heroes Run 2020

    A FLAT, FAST & PATRIOTIC RUNNING EXPERIENCE.   5K- 9.11 MILE- HALF MARATHON- MARATHON- ULTRA ULTRAS: 9 Hour 11 Min.- 24 Hour- 100 Miles Please join us for a special day to remember those lost on 9/11/2001 and to honor our armed forces and fi...

    • 1/2M

    Westminster, CO

    11.2 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

    14.41 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

    17.71 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

    Loveland, CO

    45.49 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

    11.2 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

    17.41 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

    10.19 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

    10.19 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

    29.23 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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