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Plain Endurance Runs

Leavenworth, WashingtonTim Stroh and Tim DehnhoffWebsite
In 321 days
Registration open

About this race

The Plain 100 Endurance Runs are a uniquely self-supported ultramarathon held near the town of Plain in Eastern Washington, featuring no aid stations, no course markings, and no pacers — runners navigate entirely on their own. The race offers a 100-mile (two-loop) and a 100K (one-loop) option, with the only crew/drop bag access permitted at Deep Creek between loops.

Key dates

Registration closes

Sep 3, 2027

306d

Race day

Sep 18, 2027

321d

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Listed from UltraSignup. Checked Nov 1, 2026.