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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

    Saint Charles, MO

    18.35 miles away

    I'm Attending

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

    Don't miss the fun and excitement of the MO' Cowbell Race on October 2-3, 2021!  Two event to choose from on Saturday evening, the 5K and the Mini Moo One Mile Fun Run and three events to choose from on Sunday morning, the Marathon, the Half-Marat...

    • 1/2M

    Saint Louis, MO

    10.7 miles away

    I'm Attending

    Olivette Turkey Trot

    CourseStarting and ending at Stacy Park.The loop course takes runners over residential paved streets and onto a tranquil asphalt trail. Chip timing provided by Chronotrack ensures quick and accurate race results - no matter where in the pack you s...

    • 1/2M

    Saint Louis, MO

    4.48 miles away

    I'm Attending

    Saint Louis Half Marathon and 5K

    The Saint Louis classic road race returns for its 50th anniversary! The Saint Louis Track Club will host the Saint Louis Half Marathon and 5K on November 7, 2021!  World renowned Forest Park remains the centerpiece attraction of the Saint Louis T...

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