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Missouri Marathon Calendar 2026-2027

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Monthly updates for Missouri

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Explore the best marathons in Missouri for 2026-2027! Our updated list features 16 exciting races across the region. Find your next race in Missouri below and join the running community at these great events!

April 2026
Apr
10-12
Fr - Su

Ozark Foothills Endurance Runs

Trail Run 25 km 26 mi ... 100 km 100 mi
Apr
11
Sa

Greater St. Louis Marathon

5 km 10 km Half Marathon Marathon
Apr
25
Sa

Frisco Railroad Run

Trail Run 8 km Half Marathon ... 50 km 50 mi
May 2026
May
2
Sa

The Bluffs Trail Runs

Trail Run 5 km 10 km ... Half Marathon Marathon
May
15-17
Fr - Su

Thunder Chicken 100K Stage Races

Trail Run 25 km 21 mi 26 mi 100 km
September 2026
Sep
7
Mo

Heart of America Marathon

26 mi
Sep
26
Sa

St. Joseph Missouri Marathon

3 mi 6 mi 13 mi 26 mi
October 2026
Oct
10
Sa

Declue Loops Trail Race

Backyard Ultra 8 mi 16 mi 26 mi 50 km
Oct
17
Sa

Kansas City Marathon

5 km 10 km Half Marathon Marathon
Oct
17-18
Sa - Su

I-35 Challenge

Marathon 63 km 84 km
Oct
24
Sa

Show Me Your Free State Ultra

Trail Run Half Marathon Marathon ... 80 km 161 km
November 2026
Nov
1
Su

Bass Pro Shops Conservation Marathon

Half Marathon Marathon
Nov
8
Su

Mo' Cowbell Marathon

3 mi 6 mi 13 mi 26 mi
Nov
14-15
Sa - Su

Yeti Endurance Weekend

5 km 10 km Half Marathon Marathon
Nov
21
Sa

Honoring Our Heroes Marathon

5 km 10 km Half Marathon Marathon
Nov
22
Su

St. Louis Marathon Relay

3 mi 26 mi