Texas · 18 Miles

Outlast San Antonio

Outlast San Antonio is a 18 Miles event held in San Antonio, Texas. Its next confirmed date is Saturday, December 12, 2026. About 800 runners take part across all distances.

Race day
December 12, 2026
Location
San Antonio, TX
Field size
~800 runners

Race details

Date
Saturday, December 12, 2026
Distances
18 Miles
Field size
About 800 runners
Registration
runsignup.com
Official website
texasoutlawrunning.com

Registration, course & weather

Registration status
Open
Start time
7:00 AM CST
Course profile
Loop course; Mostly trail, some road

About the Outlast San Antonio

What Is OUTLAST? OUTLAST is a 6-hour trail endurance challenge where runners complete a 5K every hour, on the hour. Each lap must be finished within the hour to stay in the event. If you finish early, you rest until the next round. Miss a lap, and you’re out. Complete all six rounds, and you OUTLAST. This isn't just about speed — it's about pacing, discipline, and mental grit. Whether you're trying to survive all six or win your division, the challenge is the same: show up each hour, push your …

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Outlast San Antonio: common questions

When is the Outlast San Antonio?
The next confirmed date is Saturday, December 12, 2026.
Where is the Outlast San Antonio held?
In San Antonio, Texas.
What distances does the Outlast San Antonio offer?
18 Miles.
How many people run the Outlast San Antonio?
About 800 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
How do I register for the Outlast San Antonio?
Registration is handled by the organiser at runsignup.com. Entry fees, caps and deadlines are set there.
Is registration open for the Outlast San Antonio?
Yes — registration is open. $100 (from runsignup.com, checked October 30, 2026).
What time does the Outlast San Antonio start?
7:00 AM CST.
What is the course like at the Outlast San Antonio?
Loop course; Mostly trail, some road.