Missouri Half Marathon Calendar 2025-2026

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Explore the best half marathons in Missouri for 2025-2026! Our updated list features 46 exciting races across the region. Find your next race in Missouri below and join the running community at these great events!

October 2025
Oct
18-19
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
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