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Plain Endurance Runs

Leavenworth, United States • 13 Sep 2025

Plain Endurance Runs, held near Leavenworth, Washington, feature challenging 100-mile and 100K races through the Cascade Mountains' remote US Forest Service trails and roads. The course covers about 85 miles of trail and 20 miles of forest roads, with an elevation gain and loss of roughly 21,000 feet. Runners navigate a self-supported event with only one resupply point after the first 100K, relying on natural water sources and carrying all necessary food and gear. The race offers stunning scenery and demands thorough preparation for long, self-sufficient segments. Proceeds benefit local Search and Rescue and military veteran support groups. Visit the organization's website for the most recent information.

United States Washington Leavenworth

Race information

Website Registration
100 mi
21000 m+
100 Miler
100 km
21000 m+
100k
Visit the organization's website for the most recent information.
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