Colorado River Trail Run

Lago Vista, United States • 28-29 Nov 2025

Event overview

The Colorado River Run is a multi-distance trail running event held over Thanksgiving weekend, Friday–Saturday, November 28–29, 2025, in the Marble Falls / Lago Vista area of Texas along the Colorado River. The event program includes ultramarathon, marathon, half-marathon and shorter trail distances, plus a 5K "Taco Trot" and special 5K kid and ruck divisions. Custom finisher medals are awarded to all finishers.

Race distances

  • 100 Mile - ultramarathon (10 laps of a 10-mile loop)
  • 50 Mile - ultramarathon (5 laps of the same loop)
  • 50K
  • Marathon (26.2 miles)
  • Half Marathon (13.1 miles)
  • 10 Miler
  • 10K (6.2 miles)
  • 5K Run/Walk (3.1 miles)
  • 5K Kids (ages 8-17)

Course and logistics

The course runs on trails along the Colorado River and includes a mix of single-track, dirt paths, and occasional technical sections with moderate elevation changes. Fully stocked aid stations provide hydration, nutrition, and medical assistance; listed snacks include fruit, cookies, bars, chips, and soft drinks. Pacers are allowed on the 100 Mile (after mile 50) and 50 Mile (after mile 30) events under registration and age rules, with a required pacer fee. Animals are not allowed at the event. Packet pickup is offered on Friday and Saturday at Turkey Bend Park near the playground. Limited campsites are available on a first-come, first-served basis. Visit the organization's website for the most recent information.

Race information

100 mi
100 Mile Ultramarathon
50 mi
50 Mile Ultramarathon
50 km
50k
26 mi
Marathon
13 mi
Half Marathon
10 km
10k
5 km
5k Ruck
5 km
5k Run/walk Taco Trot
5k Kids
Visit the organization's website for the most recent information.
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