Plain Endurance Runs
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Event overview
Plain Endurance Runs are scheduled for September 19, 2026, in the Leavenworth, Washington area. The event offers two distance options:
- 100 Miler
- 100K (one loop)
The races are organized as non-profit events with proceeds directed to local Search and Rescue and military veteran support groups. Registration typically closes on August 31.
Course and support
The course runs on USFS trails and forest service roads in the Cascade mountains within the Lake Wenatchee, Entiat, and Chelan ranger districts. The route includes about 85 miles of trail and 20 miles of forest service road, with roughly 21,000 feet of elevation gain and loss. Water is available from creeks and rivers on the course.
This is a self-supported event. Runners must carry food and required gear from the start or from a single resupply point placed after the first 100K. There are no pacers, no course markings, and no aid stations; volunteers staff checkpoints but leave runners to manage themselves. Historically about 50% of starters finish the race. Refunds are not given unless the event is cancelled, in which case some funds may be withheld to cover direct expenses. Visit the organization's website for the most recent information.
