Half Marathon Races in Missouri

Find upcoming half marathon races in Missouri — with dates, locations, and direct registration links.

52 upcoming half marathon races found in Missouri

Upcoming Half Marathon Races in Missouri

Hearts for RMHKC Half Marathon+4

Aug 16

Hearts for RMHKC Half Marathon,10K, 5K, 1 Mile Walk, & Kid's Fun Run

Sun, August 16, 2026

Parkville, MO

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5K+2

Aug 29

Medal Madness 5K, 10K, & 13.1M at Kansas City, MO (35)

Sat, August 29, 2026

Kansas City, MO

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Half Marathon+2

Aug 29

Corps of Discovery Trail Races

Sat, August 29, 2026

Saint Charles, MO

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5k+3

Aug 29

The Labor Day Slay

Sat, August 29, 2026

St Louis, MO

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5k+3

Sep 5

The Labor Day Slay 5K-10K-10K-RUCK & Half Marathon

Sat, September 5, 2026

St Louis, MO

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5k+3

Sep 5

The Labor Day Slay 5K-10K-10KRUCK-Half Marathon

Sat, September 5, 2026

St Louis, MO

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5k+6

Sep 12

Golden Harvest Half Marathon & 5k/10k - Springfield

Sat, September 12, 2026

Springfield, MO

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1 MILE RUN+8

Sep 12

Swifty Fun Run - Kansas City

Sat, September 12, 2026

Kansas City, MO

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5K+2

Sep 12

Medal Madness 5K, 10K, & 13.1M at Branson, MO (37)

Sat, September 12, 2026

Branson, MO

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Half Marathon+1

Sep 23

Pub to Pub Half Marathon & 5k

Wed, September 23, 2026

St James, MO

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5k+6

Sep 26

Golden Harvest Half Marathon & 5k/10k - St. Louis

Sat, September 26, 2026

St. Louis, MO

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Ultra+1

Sep 26

Rockin’ Rockwoods Ultra Run Half Marathon

Sat, September 26, 2026

Wildwood, MO

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Half Marathon+2

Sep 26

Pony Express Run Half Marathon, 10k & 5k

Sat, September 26, 2026

St Joseph, MO

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Half Marathon+3

Sep 27

City of Roses Half Marathon & 5K

Sun, September 27, 2026

Cape Girardeau, MO

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Kid's Dash+6

Sep 27

Golden Harvest Half Marathon & 5k/10k - Kansas City

Sun, September 27, 2026

Kansas City, MO

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Half Marathon+1

Oct 3

FLATS Trail Half Marathon

Sat, October 3, 2026

Kirksville, MO

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Half Marathon+1

Oct 3

Frog Hill Half Marathon & 10k

Sat, October 3, 2026

Waynesville, MO

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1 MILE FUN RUN+5

Oct 3

She Dreams Bigger - Women's Run

Sat, October 3, 2026

Maryland Heights, MO

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Half Marathon+3

Oct 4

Trailfest Half Marathon, 10k & 5k

Sun, October 4, 2026

Highlandville, MO

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Kids Dash+6

Oct 4

Spooky Sprint - Springfield

Sun, October 4, 2026

Springfield, MO

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5K+2

Oct 10

Haunted 5K, 10K, & 13.1M at Branson, MO (41)

Sat, October 10, 2026

Branson, MO

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Marathon+7

Oct 17

Garmin Kansas City Marathon

Sat, October 17, 2026

Kansas City, MO

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Half Marathon+2

Oct 17

Kansas City Marathon, Half Marathon, 10K & 5K

Sat, October 17, 2026

MO, MO

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I-35 Challenge - Kansas City Marathon & Des Moines Marathon+4

Oct 17

I-35 Challenge

Sat, October 17, 2026

Kansas City, MO

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Half Marathon+2

Oct 18

GO! St. Louis Great Halloween Race Half Marathon, 10k & 5k

Sun, October 18, 2026

St Louis, MO

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Half Marathon+8

Oct 24

The Great GO! St. Louis Halloween Race

Sat, October 24, 2026

St. Louis, MO

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Kids Dash+6

Oct 24

Spooky Sprint- St. Louis

Sat, October 24, 2026

St. Louis, MO

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Innsbrook Half Marathon+1

Oct 24

The Innsbrook Half Marathon & 10k

Sat, October 24, 2026

Innsbrook, MO

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Kids Dash+6

Oct 25

Spooky Sprint - Kansas City

Sun, October 25, 2026

Kansas City, MO

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Half Marathon+2

Oct 25

Spooky Sprint KC Half Marathon, 10k & 5k

Sun, October 25, 2026

Lee's Summit, MO

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