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Popular Saint Louis, Mo Half Marathon Races

View some of the best Half Marathon races in Saint Louis, Mo! 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

    St Peters, MO

    24.05 miles away

    I'm Attending

    Candy Cane Course STL

    / 2 RaceMobbers Scheduled

    Join us for the annual Candy Cane Course 5k/12k!  A fun, Christmas-themed event that is perfect for the whole family.The fun includes - Great Swag - designer shirt & custom medal Chip-timing with live results and awards Free photos ...

    • 1/2M

    Saint Charles, MO

    18.35 miles away

    I'm Attending

    MO' Cowbell Marathon/Half-Marathon/10K/5K

    / 2 RaceMobbers Scheduled

    Don't miss the fun and excitement of the MO' Cowbell Race on October 6, 2024!  Four events to choose from on Sunday morning, the Marathon, the Half-Marathon, 10K or the 5K.  Flat & fast courses, perfect for beginners or those who want to set a...

    • 1/2M

    St. Louis, MO

    3.76 miles away

    I'm Attending

    The Great GO! St. Louis Halloween Race

    The Great GO! St. Louis Halloween Race features a half marathon, 10K, 5K and 1-mile fun run – with a special Halloween twist! From the serious road racer to the family dressed head-to-toe in costume completing the race together, this is a can't-mi...

    • 1/2M

    St. Louis, MO

    3.76 miles away

    I'm Attending

    Greater St. Louis Marathon

    Experience a marathon reimagined! Unveiling the Greater St. Louis Marathon, an electrifying race weekend with fresh courses, historic sights, vibrant after-parties, and for the first time, the National Running Club Championships & Rally. All ...

    • 1/2M

    Maryland Heights, MO

    17.51 miles away

    I'm Attending

    Spooky Sprint- St. Louis

    Join us for the annual Spooky Sprint 5k/10k & Half Marathon!  A fun, Halloween-themed event that is perfect for the whole family. The fun includes - Great Swag - designer shirt & custom medal Chip-timing with live results and awards...

    • 1/2M

    Innsbrook, MO

    47.21 miles away

    I'm Attending

    The Innsbrook Half Marathon & 10k

    The Innsbrook Half returns for 2023 AND we've added a 10k option for those looking a shorter distance. Run on one of the most scenic, beautiful and challenging courses in the Midwest during the peak of fall color in Missouri! Hosted by Big River R...

    • 1/2M

    Saint Louis, MO

    3.76 miles away

    I'm Attending

    Students on the GO!

    Students on the GO! is a program for high school students to train for a half marathon or 10K over a 20-week program.  This isn’t a program just for highly trained runners (though they are welcome!). This is a program for any student who wants to ...

    • 1/2M

    Maryland Heights, MO

    16.86 miles away

    I'm Attending

    Creve Coeur St. Paddy's Half Marathon, 10K & 5K Run/Walk

    Creve Coeur St. Paddy's Half Marathon, 10K & 5K Run/Walk - 3/16/2024Maryland 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. A...

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