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Sole Survivor Backyard Ultra - Richland, WA

Richland, United States • 5-6 Sep 2025

The Sole Survivor Backyard Ultra in Richland, Washington, is a unique endurance trail running event inspired by Big's Backyard Ultra. Held at 1200 Carrier Rd., runners complete a 4.1667-mile loop every hour on the hour, continuing until only one runner remains. The course features a mix of trail and a short pavement section to ensure exact distance and single-file running.

Participants can rest between loops but must start each loop on time. The event includes an aid station with typical fare and a communal BBQ at dusk. Runners reaching 100 miles receive a custom belt buckle.

The race may extend overnight, emphasizing toughness over speed. Visit the organization's website for the most recent information.

United States Washington Richland

Race information

Website Registration
4 mi
4.16667-Mile Loop
Visit the organization's website for the most recent information.
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