Missouri · Half Marathon
Half Marathons in Missouri
Missouri currently has 35 upcoming half marathons with a confirmed date listed in RaceRove. Kansas City, St. Louis, St Charles and Wildwood have the largest concentration of events.
September (8), October (6) and November (6) are the busiest months on the calendar right now. Another 27 annual half marathons are waiting for next year's date to be announced.
- Upcoming, date confirmed
- 35
- Active listings
- 62
- Cities with races
- 25
More ways to browse Missouri
Upcoming half marathons in Missouri
All 35 with a confirmed date, soonest first.
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Frog Hill Half/10k/5k and Frog Hill ChallengeWaynesville, MO5k/Half Marathon ChallengeFrog Hill Half5k/10k CHALLENGETadpole 10k +2 more
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Show Me Your Free State Marathon and UltraSt. Joseph, MO100-Mile50-Mile50-KMMarathon +1 more ~300 runners
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MO' Cowbell Marathon/Half-Marathon/10K/5KSaint Charles, MOMarathonHalf Marathon42.195K21.0975K +2 more
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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
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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Garmin Kansas City MarathonKansas City, MO Usually held in October · date not confirmedMarathonHalf Marathon10K5K ~10,000 runners
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KC MarathonKansas City, MO Usually held in October · date not confirmedMarathonHalf ~8,000 runners
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Bass Pro Shops Conservation Marathon & Cohick HalfSpringfield, MO Usually held in November · date not confirmedMarathonHalf (Cohick)5KMarathon Relay ~4,000 runners
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Hospital Hill RunKansas City, MO Usually held in June · date not confirmedHalf Marathon10K5K ~4,000 runners
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Rock the Parkway Half MarathonKansas City, MO Usually held in April · date not confirmedHalf Marathon5K ~4,000 runners
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MO Cowbell MarathonSt. Charles, MO Usually held in October · date not confirmedMarathonHalf10K5K ~3,000 runners
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The Great GO! St. Louis Halloween RaceEureka, MO Usually held in October · date not confirmedHalf Marathon10K5K1-Mile Fun Run ~3,000 runners
When half marathons happen in Missouri
- January
- 2 upcoming races
- February
- 4 upcoming races
- March
- 2 upcoming races
- April
- 2 upcoming races
- May
- 1 upcoming race
- July
- 1 upcoming race
- September
- 8 upcoming races
- October
- 6 upcoming races
- November
- 6 upcoming races
- December
- 3 upcoming races
Missouri cities with the most half marathons
- Kansas City
- 14 upcoming races
- St. Louis
- 2 upcoming races
- St Charles
- 2 upcoming races
- Wildwood
- 2 upcoming races
- Parkville
- 1 upcoming race
- Ballwin
- 1 upcoming race
- Saint Louis
- 1 upcoming race
- Cape Girardeau
- 1 upcoming race
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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Garmin Kansas City MarathonKansas City, MO Usually held in October · date not confirmedMarathonHalf Marathon10K5K ~10,000 runners
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KC MarathonKansas City, MO Usually held in October · date not confirmedMarathonHalf ~8,000 runners
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Bass Pro Shops Conservation Marathon & Cohick HalfSpringfield, MO Usually held in November · date not confirmedMarathonHalf (Cohick)5KMarathon Relay ~4,000 runners
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Hospital Hill RunKansas City, MO Usually held in June · date not confirmedHalf Marathon10K5K ~4,000 runners
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Rock the Parkway Half MarathonKansas City, MO Usually held in April · date not confirmedHalf Marathon5K ~4,000 runners
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MO Cowbell MarathonSt. Charles, MO Usually held in October · date not confirmedMarathonHalf10K5K ~3,000 runners
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The Great GO! St. Louis Halloween RaceEureka, MO Usually held in October · date not confirmedHalf Marathon10K5K1-Mile Fun Run ~3,000 runners
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Running From SquatchSpringfield, MO Usually held in September · next date not announcedHalf Marathon10K5K1 Mile (plus Squatch-Fecta challenge & virtual) ~2,000 runners
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Missouri MarathonColumbia, MO Usually held in October · date not confirmedMarathonHalf10K5K ~1,000 runners
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The Skippo Trail RaceBallwin, MO Usually held in November · date not confirmed30KHalf Marathon10K ~700 runners
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Show-Me State GamesColumbia, MO Usually held in July · date not confirmedHalf Marathon5K ~500 runners
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Frisco Railroad RunWillard, MO Usually held in April · date not confirmed50 Mile50KMarathonHalf Marathon +1 more ~400 runners
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Columbia Trail MarathonColumbia, MO Usually held in November · date not confirmedMarathonHalf ~300 runners
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St. Louis Track Club Frostbite SeriesSt. Louis, MO Usually held in January · date not confirmedRotating winter distances incl. 5K10K15K20K +2 more ~200 runners
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Bagel Run 5K/10K/13.1 KANSAS CITYKansas City, MO Usually held in August · next date not announcedHalf Marathon5K10K1 Miles
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Golden Harvest Half Marathon & 5k/10k - SpringfieldSpringfield, MO Usually held in September · next date not announcedHalf Marathon50m1 Miles5K +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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Heatwave Half Marathon - Kansas CityParkville, MO Usually held in August · next date not announcedHalf Marathon50m1 Miles5K +1 more
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Heatwave Half Marathon - St. LouisSt. Louis, MO Usually held in August · next date not announcedHalf Marathon50m1 Miles5K +1 more
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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 Miles
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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 Miles
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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 Miles
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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 Miles
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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 Miles
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Sloth Run 5K/10K/13.1 KANSAS CITYKansas City, MO Usually held in August · next date not announcedHalf Marathon5K10K1 Miles
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Swifty Fun Run - 1 mile | 5k | 10k | 13.1 mileSaint Louis, MO Usually held in August · next date not announcedHalf Marathon1 Miles5K10K
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The Labor Day Slay 5K-10K-10KRUCK-Half MarathonSt Louis, MO Usually held in September · next date not announcedHalf Marathon5K10K
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.
- 9 min read How to Run a Race in All 50 States How to plan a 50-state running challenge: set your own rules, group states into trips, build a calendar around the seasons, budget for it and keep track of every finish.
- 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 35 upcoming half marathons in Missouri with a confirmed date, plus 27 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 (14), St. Louis (2), St Charles (2), Wildwood (2) and Parkville (1).
- When is half marathon season in Missouri?
- Of the upcoming half marathons listed, the busiest months are September (8), October (6) and November (6).
- 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.