Missouri · Half Marathon
Half Marathons in Missouri
Missouri currently has 43 upcoming half marathons with a confirmed date listed in RaceRove. Kansas City, St. Louis, Columbia and Parkville have the largest concentration of events.
November (10), October (8) and February (4) are the busiest months on the calendar right now. Another 23 annual half marathons are waiting for next year's date to be announced.
- Upcoming, date confirmed
- 43
- Active listings
- 66
- Cities with races
- 22
More ways to browse Missouri
Upcoming half marathons in Missouri
All 43 with a confirmed date, soonest first.
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Bass Pro Shops Conservation Marathon & Cohick HalfSpringfield, MOMarathonHalf (Cohick)5KMarathon Relay ~4,000 runners
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MO' Cowbell Marathon/Half-Marathon/10K/5KSaint Charles, MOMarathonHalf Marathon42.195K21.0975K +2 more ~3,000 runners
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St. Louis Track Club Frostbite SeriesSt. Louis, MORotating winter distances incl. 5K10K15K20K +2 more ~200 runners
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Heart of the Ozarks Half Marathon, 10K & Mindy's RunWest Plains, MOHalf Marathon10K2.5M ~250 runners
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Creve Coeur St. Paddy's Half Marathon, 10K & 5K Run/WalkMaryland Heights, MOHalf Marathon5K10K100m ~400 runners
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The "ROCKIN' RIVERFEST" 5k, 10K, HALF MARATHON & Fun Run!St Charles, MOHalf Marathon5K10K ~560 runners
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Running From SquatchSpringfield, MOHalf Marathon10K5K1 Mile (plus Squatch-Fecta challenge & virtual) ~2,000 runners
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Golden Harvest Half Marathon & 5k/10k - St. LouisSt. Louis, MOHalf Marathon50m1 Mile5K +1 more ~10 runners
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Golden Harvest Half Marathon & 5k/10k - Kansas CityParkville, MOHalf Marathon50m1 Mile5K +1 more ~10 runners
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Show Me Your Free State Marathon and UltraSt. Joseph, MO100-Mile50-Mile50-KMMarathon +1 more ~300 runners
Dates come from each race's own listing. Always confirm on the organiser's site before you book travel.
Largest half marathon events in Missouri
By estimated field size across all distances at the event.
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Bass Pro Shops Conservation Marathon & Cohick HalfSpringfield, MOMarathonHalf (Cohick)5KMarathon Relay ~4,000 runners
When half marathons happen in Missouri
- January
- 2 upcoming races
- February
- 4 upcoming races
- March
- 2 upcoming races
- April
- 4 upcoming races
- May
- 2 upcoming races
- July
- 3 upcoming races
- August
- 2 upcoming races
- September
- 2 upcoming races
- October
- 8 upcoming races
- November
- 10 upcoming races
- December
- 4 upcoming races
Missouri cities with the most half marathons
- Kansas City
- 16 upcoming races
- St. Louis
- 7 upcoming races
- Columbia
- 3 upcoming races
- Parkville
- 2 upcoming races
- Springfield
- 2 upcoming races
- St Charles
- 2 upcoming races
- Ballwin
- 2 upcoming races
- St. Joseph
- 1 upcoming race
Running in Missouri cities
Annual events awaiting their next date
These half marathons are held every year, but the next date isn't in the listing yet. The month shown is when each is usually held.
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The Great GO! St. Louis Halloween RaceEureka, MO Usually held in October · next date not announcedHalf Marathon10K5K1-Mile Fun Run ~3,000 runners
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Spooky Sprint - Kansas CityLee's Summit, MO Usually held in October · next date not announced1 Mile5K10KHalf Marathon ~510 runners
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The Innsbrook Half Marathon & 10kInnsbrook, MO Usually held in October · next date not announcedHalf Marathon5K ~500 runners
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City of Roses Half Marathon & 5KCape Girardeau, MO Usually held in September · next date not announcedHalf Marathon5K ~350 runners
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FLATS Trail Half MarathonKirksville, MO Usually held in October · next date not announced1/2 Marathon ~175 runners
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St. Joseph MarathonSt Joseph, MO Usually held in September · next date not announced10K5KHalf MarathonMarathon +5 more ~101 runners
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Spooky Sprint - SpringfieldWillard, MO Usually held in October · next date not announced1 Mile5K10KHalf Marathon ~15 runners
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Spooky Sprint- St. LouisSt. Louis, MO Usually held in October · next date not announcedHalf Marathon10K5K1 Mile ~10 runners
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Bagel Run 5K/10K/13.1 KANSAS CITYKansas City, MO Usually held in August · next date not announcedHalf Marathon5K10K1 Mile
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Frog Hill Half/10k/5k and Frog Hill ChallengeWaynesville, MO Usually held in October · next date not announced5k/Half Marathon ChallengeFrog Hill Half5k/10k CHALLENGETadpole 10k +2 more
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Golden Harvest Half Marathon & 5k/10k - SpringfieldSpringfield, MO Usually held in September · next date not announcedHalf Marathon50m1 Mile5K +1 more
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Hearts for RMHKC Half Marathon,10K, 5K, 1 Mile Walk, & Kid's Fun RunParkville, MO Usually held in August · next date not announcedHalf Marathon5K10K100 Yards
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I-35 ChallengeKansas City, MO Usually held in October · next date not announcedMarathonHalf Marathon
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National Chocolate Day: Run for Chocolates 5K/10K/13.1 KANSAS CITYKansas City, MO Usually held in September · next date not announcedHalf Marathon5K10K1 Mile
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Oktoberfest Run 5K/10K/13.1 KANSAS CITYKansas City, MO Usually held in September · next date not announcedHalf Marathon5K10K1 Mile
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Rockin' Rockwoods 53K and 1/2 MarathonWildwood, MO Usually held in September · next date not announced53K1/2 Marathon13.1 Ruck
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Run for Breast Cancer 5K/10K/13.1 KANSAS CITYKansas City, MO Usually held in August · next date not announcedHalf Marathon5K10K1 Mile
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Run for Coffee Lovers 5K/10K/13.1 KANSAS CITYKansas City, MO Usually held in July · next date not announcedHalf Marathon5K10K1 Mile
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Run for Donuts 5K/10K/13.1 KANSAS CITYKansas City, MO Usually held in September · next date not announcedHalf Marathon5K10K1 Mile
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Run for Mental Health 5K/10K/13.1 KANSAS CITYKansas City, MO Usually held in September · next date not announcedHalf Marathon5K10K1 Mile
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Run for PB& J 5K/10K/13.1 KANSAS CITYKansas City, MO Usually held in August · next date not announcedHalf Marathon5K10K1 Mile
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Sloth Run 5K/10K/13.1 KANSAS CITYKansas City, MO Usually held in August · next date not announcedHalf Marathon5K10K1 Mile
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Whiskey Run St. Louis / St. CharlesSt Charles, MO Usually held in September · next date not announced10k5kHalf Marathon
Half Marathons in nearby states
Guides from the RaceRove blog
- 7 min read How to Find a 5K, 10K, Half Marathon or Marathon Near You A practical way to find running races near you: pick a distance, decide how far you'll travel, read the listing properly and confirm the details before you register.
- 8 min read How to Choose the Best Half Marathon for a PR, Racecation or 50-State Challenge The best half marathon depends on what you want from it. How to choose a course for a personal record, a race worth travelling for, or an efficient stop on a 50-state challenge.
- 4 min read Diplo's Run Club 2026-27: Every City, Date and Course Diplo's Run Club is a 5K with a post-race concert. Every US date for 2026-27 (San Francisco, New York, Los Angeles, San Diego and Phoenix), start times and courses.
- Blog All guides Planning advice for finding, choosing and travelling to races.
Half Marathons in Missouri: common questions
- How many half marathons are there in Missouri?
- RaceRove currently lists 43 upcoming half marathons in Missouri with a confirmed date, plus 23 annual events whose next date hasn't been announced yet.
- How long is a half marathon?
- A half marathon is 13.1 miles (21.1 kilometres).
- Which Missouri cities have the most half marathons?
- By upcoming events listed in RaceRove: Kansas City (16), St. Louis (7), Columbia (3), Parkville (2) and Springfield (2).
- When is half marathon season in Missouri?
- Of the upcoming half marathons listed, the busiest months are November (10), October (8) and February (4).
- What is the biggest half marathon in Missouri?
- By estimated field size, the largest event with a half marathon listed in Missouri is the Go! St. Louis, with about 12,000 runners across all of its distances.
Search every half marathon in Missouri
Filter by month, course profile and field size, save races to a shortlist and compare them side by side in the interactive search.