Marathons in Missouri, United States
39 upcoming races are listed in Missouri, including 16 marathons, 33 half marathons and 8 ultras. The next is MO' Cowbell Marathon/Half-Marathon/10K/5K on November 8, 2026.
November has the most races. Race pages link the official source where we have one. Confirm dates and prices with the organizer before you register.
39
Races listed
16
Marathons
November
Busiest month
25 May
Last updated
Around Missouri
This is the most detailed level of the directory. Widen the search to the surrounding region.
Common questions
When is the next race in Missouri?
MO' Cowbell Marathon/Half-Marathon/10K/5K on November 8, 2026. The table above lists every upcoming race in date order.
Which months are busiest in Missouri?
November (15), December (8), April (5), counting every upcoming race listed in Missouri.
Which distances can I run in Missouri?
The listed races include 16 marathons, 33 half marathons, 8 ultras, 24 10Ks and 25 5Ks. Many events offer more than one distance on the same day.
How do I confirm a race’s details?
Open the race page and check its provenance ledger, which shows where each fact came from. Then confirm the date, price and entry rules with the organizer before you register or book travel.
Spotted something wrong on this page?
Dates and prices move · tell us and we check the organizer’s source