Missouri Half Marathon Calendar 2025-2026

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Explore the best half marathons in Missouri for 2025-2026! Our updated list features 39 exciting races across the region. Find your next race in Missouri below and join the running community at these great events!

October 2025
Oct
18
Saturday

Kansas City Marathon

5 km 10 km 13 mi 26 mi
Oct
18-19
Sa - Su

The Great St. Louis Halloween Race

5 km 10 km 13 mi
Oct
18-19
Sa - Su

I-35 Challenge

13 mi 26 mi
Oct
24
Friday

Midnight Rat Race - Unsanctioned

13 mi
Oct
25
Saturday

Spooky Sprint - Kansas City

5 km 10 km 13 mi
Oct
25
Saturday

The Innsbrook Half Marathon

10 km 13 mi
November 2025
Nov
9
Sunday

Saint Louis Half Marathon

5 km 13 mi
Nov
15
Saturday

Honoring Our Heroes Marathon

5 km 10 km 13 mi 26 mi
December 2025
Dec
6
Saturday

Wildwood Trail Marathon

Trail Run 13 mi 26 mi
Dec
13
Saturday

The Best Races - Kansas City

5 km 10 km 13 mi
Dec
27
Saturday

Run for the Ranch

5 km 13 mi 26 mi 6 hr
January 2026
Jan
24
Saturday

Time Travel Half-Marathon - St. Louis

5 km 10 km 13 mi
March 2026
Mar
7
Saturday

Running From Yeti - Kansas City, MO

5 km 10 km 13 mi
April 2026
Apr
4
Saturday

Wolf Creek Trail Run

Trail Run 6 km 13 mi
Apr
11
Saturday

Bridge and Dam

5 km 10 km 13 mi
Apr
11
Saturday

Greater St. Louis Marathon

5 km 10 km 13 mi 26 mi
May 2026
May
2
Saturday

The Bluffs Trail Runs

Trail Run 5 km 10 km ... 13 mi 26 mi
May
16
Saturday

The Spring Sprung Half Marathon

5 km 10 km 13 mi
June 2026
Jun
7
Sunday

Baby Shippey

Trail Run 10 km 13 mi
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