Colorado River Trail Run
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Event overview
The Colorado River Run is a multi-distance trail running event on Friday and Saturday, November 28-29, 2025, held at Turkey Bend Park on the Colorado River in Marble Falls, Texas. Race distances offered include:
- 100 miles
- 50 miles
- 50K
- Marathon (26.2 miles)
- Half marathon (13.1 miles)
- 10K
- 10 miles
- 5K
Race registration includes park entry for the registered participant. Custom finisher medals are awarded to all finishers. The event lists a no-refund policy and states the race may be canceled or rescheduled for severe weather or other circumstances beyond the organizer's control.
Course and logistics
The course uses riverbank and park trails with a mix of single-track, dirt paths, and occasional technical sections. Elevation is described as moderate with some climbs and descents. Aid stations are placed along the course and are stocked with hydration, nutrition, and medical support; available snacks include fruit, cookies, breakfast bars, chips, and soft drinks. The 100-mile distance is a 10-loop 10-mile circuit (direction alternates each lap); the 50-mile follows the same loop for 5 laps. Pacers are allowed for the 100-mile (after mile 50) and 50-mile (after mile 30) with registration, a fee, age and bib requirements, and rules about aid-station entry and no physical assistance. Camping and designated parking are available at the park; animals are not allowed at the event. Volunteer roles and benefits are listed for aid stations, course marshals, and packet support. Visit the organization's website for the most recent information.
