Tartarus Backyard Ultra

Spokane, United States • 6-7 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, as participants must provide their own aid and return to the start line before each hour's bell. Fundraising opportunities are available, encouraging participants to support a cause while competing. Visit the organization's website for the most recent information.

Race information

4 mi
4.1667 Mile Laps
2.2 Mile Laps
Visit the organization's website for the most recent information.
Trail runs nearby

The Spokane River Run 2025 is set to take place at Riverside State Park, offering a variety of race options including a 5K, 10K, 25K, 50K, and new relay formats such as the 25K Tag Team and 50K Relay. Participants will receive race shirts, and finishers of the 25K and 50K will earn medals. The event..

The Hiawatha Spring Trail Run is an exciting running event taking place from June 2 to June 9, 2025, in Taft, Montana. Participants can choose from various distances, including 50K, 25K, 15K, and 10K, as well as a virtual run option. The scenic course features historic railroad tunnels, providing a..

The Kan is an exciting mountain ultra trail race held at Mt. Spokane State Park, featuring 50k, 25k, and 10k options. Participants will navigate through stunning alpine meadows, huckleberry groves, and old pine forests, experiencing a fast-paced course with significant elevation gains.The event prom..

UTMB Index

The Mountain Magic Trail Run, set for June 29, 2025, at Mt. Spokane State Park, offers a vibrant trail running experience with distances of 5k, 10k, 25k, and a new 35k Grand Tour. Participants will navigate beautiful, rolling Nordic ski trails, featuring a mix of elevation gains and scenic views.The..

The Mt. Spokane Trail Run is a scenic running event taking place from September 5 to September 14, 2025, at Mt. Spokane State Park.Participants can choose from various distances, including a 5K, 10K, and 25K, all starting and finishing at Selkirk Lodge. Runners will enjoy beautiful trails while rece..

The Gone Fir A Run 50K is an exciting trail running event set in the scenic Riverside State Park in Spokane, WA. Participants will enjoy a beautiful course featuring rolling river trails, stunning mountain views, and diverse terrain, making it suitable for beginner to intermediate runners. The event..