Autumn Harvest Marathon
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Event details
The Autumn Harvest trail events take place on Sunday, October 11, 2026, at Turkey Bend Recreation Area, 4000 Shaw Dr., Marble Falls, TX 78654. The race program includes the following distances and formats:
- 26.2 miles - Marathon
- 13.1 miles - Half marathon
- 12-hour - Endurance challenge (no fixed distance)
- 10K
- 5K
Packet pickup is scheduled on race day at Turkey Bend Recreation Area. Parking is available at the event venue. Non-registered spectators and support crews must pay the park entry fee required by Turkey Bend Recreation Area.
Course, rules and support
Courses run on the Turkey Bend trails along Lake Travis and include rolling terrain with moderate elevation changes, a mix of single-track and wider trails, and viewpoints overlooking Lake Travis. Courses will be marked with reflective trail markers and glow sticks for low-light sections.
The 12-hour endurance challenge uses a 12-hour continuous cut-off; the winner is the participant who covers the most miles during that time. Aid stations and course support are provided. For night running, a headlamp with fresh batteries is required. Organizers also recommend a backup light, reflective clothing or vest, a personal hydration system, and a cell phone for emergency communications. In case of severe weather, the event may be postponed or converted to a virtual option; a decision will be made 24 hours before the scheduled date. Visit the organization's website for the most recent information.