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Popular Windsor, Co Half Marathon Races

View some of the best Half Marathon races in Windsor, 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

    Anywhere, CO

    46.7 miles away

    I'm Attending

    Sunrise Marathon COLORADO VR

    Run in our first Sunrise Marathon Virtually!    How it Works:1. Signup for the Marathon, Half-Marathon, 10K, or 5K.   2. Get a running shirt, race bib, finisher's medal and race course mailed to you.  3. Start @ the same start line as others a...

    • 1/2M

    Louisville, CO

    38.22 miles away

    I'm Attending

    Prairie Dog Series PACKAGE OF FOUR EVENTS

    Join Peedy the Prairie Dog every season for the Prairie Dog Half Marathon Series! This is the PACKAGE registration to become enrolled in ALL FOUR events offered in Colorado in 2022* 2022 Prairie Dog Half Marathon Package:For just $225.00 (Price i...

    • 1/2M

    Arvada, CO

    46.82 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

    Estes Park, CO

    32.4 miles away

    I'm Attending

    Rocky Mountain Half Marathon & 5K

    Join us for a weekend of running and scenic mountain views in historic Estes Park, Colorado just outside Rocky Mountain National Park.  Race Dates:5K - July 29, 2022Half Marathon - July 30, 2022 Run one race or register for the Elk Double and ru...

    • 1/2M

    Longmont, CO

    24.67 miles away

    I'm Attending

    American Heroes Run

    The tragic events of 9/11/01 changed our nation forever. Let us not forget our proud history and those who fight everyday to keep us free. Please join us for this special day on this beautiful, flat, fast 1.05-mile loop course. The 100-mile race c...

    • 1/2M

    Cheyenne, WY

    48.36 miles away

    I'm Attending

    Cheyenne Marathon

    Join us for the 4th Annual Cheyenne Marathon in historic Cheyenne, Wyoming! We'll be introducing a brand-new course this year.  All events will start and finish at the Archer Recreation Complex just off I-80, exit 370. Please visit our website at...

    • 1/2M

    Windsor, CO

    1.48 miles away

    I'm Attending

    Windsor Marathon, Half Marathon, 10K & 5K

    Welcome to the second annual Windsor CO Race! This year's event will start and end at The Island at Pelican Lakes in Water Valley, with a great after party including beer, food, music and a live band! New to the series is a Full Marathon distance,...

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