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Backyard Ultra - Summit Trail Racing

Marble Falls, United States • 22 Nov 2025

The Backyard Ultra - Summit Trail Racing is an exciting trail running event taking place in Marble Falls, TX, designed as a "Last Person Standing" race. Participants will run a 4.1667-mile loop every hour until only one runner remains. This officially sanctioned event, inspired by Lazarus Lake, offers a unique challenge where runners must return to the start line within 60 minutes. The race features crew access, aid stations, and opportunities for primitive camping. This year's event is notable for being one of the select races that grants an automatic spot on the United States Backyard Ultra National Team for 2026. Visit the organization's website for the most recent information.

United States Texas Marble Falls

Race information

Registration
4 mi
4.1667 Miles
Visit the organization's website for the most recent information.
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