Big Bend Ultra - Terlingua, TX

JAN
18
2026
Run across the stunning Big Bend landscape with distances from 10k to 100K, including rugged trails through national and state parks. Remote desert scenery, volunteer support, and pristine night skies make this a memorable winter ultra.
Sun 18 Jan 2026
100 kilometers 55 kilometers 35 kilometers 20 kilometers 10 kilometers

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Big Bend Ultra - Terlingua, TX

The Big Bend Ultra is scheduled for Sunday, January 18, 2026, in Terlingua, Texas (21800 FM170, Terlingua, TX 79852). The event includes the following distances:

  • 10k
  • 20k
  • 35k
  • 55k
  • 100K

Entry fees listed are $125 for the 10k, $135 for the 20k, $145 for the 35k, $170 for the 55k, and $235 for the 100K. Prices increase after November 15, 2025.

Course and event notes

The race was first held in 2004 and has been held annually since. The setting is in and near Big Bend national and state parks, a region of more than 300,000 acres. The organizer notes that water, fuel, and transportation are scarce in the area, and that the park’s low light pollution is notable for stargazing. The event is supported by volunteers and competitors associated with Trail Roots and lists multiple sponsors. Visit the organization's website for the most recent information.

100 km
100k
55 km
55k
35 km
35k
20 km
20k
10 km
10k

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