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Missouri Ultramarathon Calendar 2026-2027

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Explore the best ultramarathons in Missouri for 2026-2027! Our updated list features 26 exciting races across the region. Find your next race in Missouri below and join the running community at these great events!

June 2027
Jun
5
Sa

Freedom Backyard Ultra

Backyard Ultra 7 km
Jun
5
Sa

KT82 Trail Relay

Trail Run 82 mi
July 2027
Jul
31
Sa

Midsommar Sun Loop Ultra

Trail Run 5 mi 15 mi ... 50 mi 100 mi
August 2027
Aug
28
Sa

Leaky Hourglass Ultra

Backyard Ultra 4 mi
October 2027
Oct
9
Sa

Lion King Backyard Ultra

Backyard Ultra 7 km
Monthly updates for Missouri

Get new running races (and updates) in your inbox every month.
Oct
23
Sa

Show Me Your Free State Ultra

Trail Run 13 mi 26 mi ... 50 mi 100 mi
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