Plain Endurance Runs

SEP

19

2026

A self supported mountain trail event in the Cascades offering 100K and 100 mile options, about 21,000 feet of elevation change and one resupply point after the first 100K. The race is nonprofit and benefits local rescue and veteran groups.

Sat 19 Sep 2026

Leavenworth, Washington

Website Registration

100 miles 100 kilometers

Always double-check with the organizer's website! This page may contain affiliate links.

Plain Endurance Runs : September 19, 2026

The Plain Endurance Runs are mountain trail races held in Eastern Washington in the Cascade Mountains. The course uses USFS trails and forest service roads within the Lake Wenatchee, Entiat, and Chelan ranger districts near Plain and Leavenworth, Washington. The route is remote, with approximately 85 miles of trail and 20 miles of forest roads and about 21,000 feet of elevation gain and loss.

This is a self supported event. Water must be taken from creeks and rivers on course and runners carry their own food and gear either from the start or from a single re supply point that is available after the first 100K. Volunteers staff checkpoints but the event provides no pacers, course markings, or aid stations in the usual sense. Train for long, self sufficient segments on a demanding mountain course.

The event is non profit and proceeds support local search and rescue and military veteran support groups. There is no refund policy except if the event is cancelled, in which case some funds may be retained to cover direct expenses. The 2025 edition was cancelled due to fire closure boundaries and the event is scheduled for September 19, 2026.

Distances Visit the organization's website for the most recent information.