Big Bend Ultra - 20k
Also in this race
These events were grouped as one card in discovery—pick another distance or date without going back.
External Event
Distance
12.5 mi
Pace
All paces
Terrain
Road
Difficulty
All Levels
About this run
In 2004, a wild idea was hatched: an ultra trail race in Big Bend. It had never been done. The logistics were impossible. Big Bend national and state parks are huge: over 300,000 acres and several hours from San Antonio. Water is scarce. Fuel is scarce. Transportation is scarce. The isolation also means it has lowest light pollution of any park in the lower 48 states: making it a fantastic place for stargazing. This was the beginning of a truly great event that has been held annually ever since. This year Carroll Voss, Erik Stanley, and the team of volunteers and competitors with Trail Roots are looking forward to the best race yet.
Typical conditions
For events around January 2027 in Terlingua, TX, United States: Typical mid-winter / cooler season in this region — dress in layers and check the official page for weather-related changes.
How to prepare
Half marathon prep usually includes a weekly long run that builds toward 16–20 km, plus easy runs for recovery. Confirm packet pickup and start procedures on the official registration page.
Plan longer races for 2026Getting there
This event is listed in Terlingua, TX, United States. Confirm the exact start venue, parking, and transit options on the official registration page.
Registration is handled by the official event organizer
Know a local group? Host a community run in Terlingua
Also in this race
- Jan 17, 2027 · 11:30 AM
- Jan 17, 2027 · 1:00 PM
- Jan 17, 2027 · 2:00 PM
- Jan 17, 2027 · 2:30 PM (this one)
- Jan 17, 2027 · 3:00 PM