Lake Travis New Year's Trail Challenge 50K
Lago Vista, United States • 1-2 Jan 2026
Event overview
The Lake Travis New Year's Trail Challenge takes place January 1-2, 2026 in Marble Falls, TX at Shaffer Bend Park (706 County Road 343A). The event offers multiple race and ruck options on trail terrain along the Colorado River and limestone bluffs. Distances include:
- 100K (ultramarathon)
- 50K (ultramarathon)
- 25K (trail run)
- 13.1M (half-marathon)
- 10K (run or ruck)
- 5K (run/walk or ruck)
- Kids 1K (open to ages 8 and under)
Additional options listed include a 24-hour Last Runner Standing Ultra, a 24 Hour Endurance Challenge, and pacer registration.
Course and race details
The event uses a looped course on trails and along the river. Per loop metrics are provided as: 7.183 miles per loop, elevation range 640' to 734', and approximately 512 ft gain / 531 ft loss per loop. The 100K and 50K are listed as 62.2 miles and 31.1 miles respectively and have a 24-hour cutoff. The 25K distance is listed as 15.5 miles with a 12-hour cutoff; terrain is described as varied natural trails and running or hiking poles are recommended. Ruck divisions for the half-marathon and 25K require minimum weights of 20 lbs for participants under 150 lb and 30 lbs for participants over 150 lb, with weights checked at the start and finish and a 12-hour cutoff. Visit the organization's website for the most recent information.