Colorado River Run 100 Mile • 50 Mile • 50K • Marathon • Half Marathon • 10K • 5K

The Colorado River Run takes place in late November at Turkey Bend Park in Marble Falls, Texas, offering distances from a 5K for children to a 100-mile ultramarathon. The longer races commence in the morning and provide ultrarunners with generous cutoffs: 39 hours for the 100-miler and 36 hours for the 50-miler. The event also features a 50K, marathon, half marathon, Double Turkey 10K, Double Turkey 5K Run/Walk, and pacer registration for the 50- and 100-mile races. The course follows the Colorado River on park trails, combining riverbank segments, more rugged paths, and tranquil natural surroundings. Aid stations offer hydration, food, and medical support, important for a race that spans from short family events to overnight ultras. The 5K Run/Walk is designed for families, allowing children to join registered parents without charge. Participants can also book camping sites, and the event incorporates waste reduction and sustainable materials into its operations.