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Tartarus Backyard Ultra

Spokane, United States • 6 Sep 2025

The Tartarus Backyard Ultra is a unique running and rucking event held at Camp 7 in Riverside State Park, Spokane, WA. Following the last person standing format, participants must complete laps within an hour, with the race continuing until only one runner and one rucker remain. Runners tackle a 4.1667-mile loop, while ruckers navigate a 2.2-mile course.

The event emphasizes self-sufficiency, with participants required to manage their own aid and support. Additionally, there is an option to fundraise for entry fees, aiming for a collective goal of $3,000. The event promises a challenging and engaging experience for all participants. Visit the organization's website for the most recent information.

United States Washington Spokane

Race information

Website Registration
4 mi
Run Event
Ruck Event
Visit the organization's website for the most recent information.
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