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Half Marathons in Missouri

  1. Races by State
  2. Missouri
  3. Half Marathon

Browse Half Marathon races in Missouri, including upcoming races and races up to one year past their event date. Sort by highest rating or number of reviews to elevate the most popular races.

For each Half Marathon race, you’ll find key details, finisher ratings and reviews, photos, videos, related articles, race-day weather data and a link to register.

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Showing Half Marathons in Missouri

Clinton Historic Half Marathon & 5K
Clinton, MO | Jun 13, 2026

OVERALL

(3 ratings)

4
Love to Run St. Charles
Saint Charles, MO | Jun 13, 2026

OVERALL

(1 rating)

4
Rockin’ Riverfest 5K, 10K & Half Marathon
St. Charles, MO | Jul 4, 2026

OVERALL

(1 rating)

3
Heatwave Half Marathon Kansas City
Kansas City, MO | Aug 2, 2026

OVERALL

(0 ratings)

0
Swifty Fun Run St. Louis
Maryland Heights, MO | Aug 8, 2026

OVERALL

(1 rating)

4
Hearts For RMHKC Half Marathon, 10K & 5K
Parkville, MO | Aug 16, 2026

OVERALL

(5 ratings)

4.4
Corps of Discovery Trail Races
Defiance, MO | Aug 29, 2026

OVERALL

(1 rating)

4
Labor Day Slay
St. Louis, MO | Aug 29, 2026

OVERALL

(0 ratings)

0
Swifty Fun Run Kansas City
Kansas City, MO | Sep 12, 2026

OVERALL

(0 ratings)

0
Running From Squatch Springfield, MO
Springfield, MO | Sep 19, 2026

OVERALL

(1 rating)

4
Rockin’ Rockwoods Trail Race
Wildwood, MO | Sep 26, 2026

OVERALL

(2 ratings)

2.5
St. Joseph, Missouri Marathon
St. Joseph, MO | Sep 26, 2026

OVERALL

(6 ratings)

4.3
City of Roses Half Marathon & 5K
Cape Girardeau, MO | Sep 27, 2026

OVERALL

(1 rating)

4
Golden Harvest Half Marathon Kansas City
Kansas City, MO | Sep 27, 2026

OVERALL

(0 ratings)

0
Frog Hill Half Marathon, 10K & Leapfrog 5K
Waynesville, MO | Oct 3, 2026

OVERALL

(2 ratings)

3.5
MIDNIGHT Rat Race UNSANCTIONED
Springfield, MO | Oct 16, 2026

OVERALL

(0 ratings)

0
Kansas City Marathon
Kansas City, MO | Oct 17, 2026

OVERALL

(114 ratings)

4.4
Great GO! St. Louis Halloween Race
Eureka, MO | Oct 24–25, 2026

OVERALL

(7 ratings)

4.1
Innsbrook Half Marathon & 10K
Innsbrook, MO | Oct 24, 2026

OVERALL

(2 ratings)

4
Show Me Your Free State Marathon & Ultramarathon
St. Joseph, MO | Oct 24, 2026

OVERALL

(0 ratings)

0

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