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Best St. Louis, Missouri Half Marathon Races

View some of the best Half Marathon races in St. Louis, Missouri! 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

    Innsbrook, MO

    47.21 miles away

    I'm Attending

    The Innsbrook Half Marathon

    Run on one of the most scenic and beautiful courses in the Midwest during the peak of fall color in Missouri! The Innsbrook Half Marathon will be your chance to run a real half marathon on a real course while keeping safety a priority. Hosted by B...

    • 1/2M

    Saint Charles, MO

    18.44 miles away

    I'm Attending

    MO' Cowbell Marathon/Half-Marathon/Relay/5K

    Don't miss the fun and excitement of the MO' Cowbell Marathon, Half Marathon, Relay & 5K race! This flat & fast course is perfect for beginners or those who want to set a new personal best! Come to the 10th Annual MO' Cowbell Marathon, Hal...

    • 1/2M

    Saint Louis, MO

    8.2 miles away

    I'm Attending

    The Great GO! St. Louis Halloween Race

    IN-PERSON EVENT DESCRIPTION: The team at GO! St. Louis is excited to bring participants an in-person race this fall, and even more excited to do it with the annual favorite tradition - the Great GO! St. Louis Halloween Race!  This year’s race wil...

    • 1/2M

    Saint Louis, MO

    4.48 miles away

    I'm Attending

    St. Louis Half Marathon

    The St. Louis Classic Road Race!   The 2020 Half Marathon Course will be new...details & a course map to be announced soon!   World renowned Forest Park remains as the centerpiece attraction of the St. Louis Track Club's Half Marathon.  Runne...

    • 1/2M

    Mascoutah, IL

    22.74 miles away

    I'm Attending

    Four Legged Running Half Marathon, 10k, 5k, and Dog Mile

    Visit www.fourleggedrunning.com for all race day rules, information, and more. Interested in becoming a Four Legged Running Race Ambassador: https://www.fourleggedrunning.com/ambassador. Please choose your registration category carefully, choose...

    • 1/2M

    Maryland Heights, MO

    16.83 miles away

    I'm Attending

    Creve Coeur St. Paddy's Half Marathon & 7K Run/Walk

    Creve Coeur St. Paddy's Half Marathon & 7K Run/Walk - 3/06/2021Maryland Heights, MO Use #StPaddysRun when sharing your photos from the event. Event times, dates, location and all other details are subject to change prior to the event. All of...

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