Trail ultramarathons in Oklahoma, United States
Find trail ultramarathons in Oklahoma, United States. Compare 3 upcoming events by date and location. Open a race guide for the course, recorded editions and official entry information where available.
Events to explore include Lake Murray Endurance Run, Liberty’s Lost Treasure and Ouachita Switchbacks.
3 listed events · 3 with upcoming dates
Upcoming ultramarathons
3 matching events, earliest date first. Entry availability is shown separately.
Lake Murray Endurance Run
USAArdmore, Oklahoma
Trail races of several lengths through Lake Murray State Park. Confirm the precise start location in the final briefing: current organiser text…
· 100K / 50K
Race details, entry and past editions →Entry information ↗Liberty’s Lost Treasure
USAGuthrie, Oklahoma
Trail races around Liberty Lake, using repeated loops for the longer distances and an out-and-back 5K.
· 50K
Race details, entry and past editions →Entry information ↗Ouachita Switchbacks
USABig Cedar, Oklahoma
Technical trail races on the Ouachita Trail near Big Cedar.
· 50K
Race details, entry and past editions →Entry information ↗Race archive
Past races and previous editions
Looking back at a race? Browse the guides below for recorded editions. This section also includes events awaiting a new date and cancelled editions. Previous editions of races in the upcoming calendar are available through their race guides above.
No separate archived race guides are listed for this selection yet.
View full race archive (0) →Choosing a race in Oklahoma
The unfiltered upcoming calendar includes events in Ardmore (1), Big Cedar (1), Guthrie (1). Use the town filter to compare locations, then check the race guide for the start venue and organiser’s travel information.
Questions about ultramarathons in Oklahoma
Which trail ultramarathons are coming up in Oklahoma, United States?
Lake Murray Endurance Run is listed for 24 October 2026. Liberty’s Lost Treasure is listed for 7 November 2026. Ouachita Switchbacks is listed for 16 January 2027. Check the race guide and organiser’s latest information before making plans.
Where can I find race entry details for Oklahoma, United States?
Follow the link from the race guide to the organiser or entry provider, where one is available. Check the entry deadline, eligibility and current availability there. A listed race date does not necessarily mean entries are still open.
Why has a race moved out of the upcoming calendar?
Once its listed dates have passed, a race moves to the past-editions view unless another upcoming edition is recorded. Cancelled events also leave the upcoming list. The race guide stays available, and the event returns when a new date is added.