Backyard Ultra - Summit Trail Racing

The Backyard Ultra - Summit Trail Racing is an exciting trail running event taking place in Marble Falls, TX, on November 22, 2025. This unique race format, inspired by Lazarus Lake, challenges participants to complete a 4.1667-mile loop every hour until only one runner remains. The event is officially sanctioned and offers a chance to qualify for the United States Backyard Ultra National Team in 2026.

Participants can enjoy crew access, primitive camping, and aid stations with refreshments. The course features a mix of flat trails and roads, ensuring a dynamic running experience. Visit the organization's website for the most recent information.