<h4>CANCELED FOR 2025 DUE TO POMAS FIRE CLOSURE.</h4>
Just plain tough
Overview
The Plain Endurance Runs are a legendary test of self-sufficiency and grit in Washington’s Cascade Mountains. With no course markings, no aid stations, and no pacers allowed, these races demand that runners rely entirely on their own planning, navigation, and resilience. Known as one of the toughest ultras in the country, the 100-miler has seen years with zero finishers. For those seeking the full experience on a slightly smaller scale, the 100K offers a single-loop challenge through remote and rugged terrain.
Course
Two-loop format for 100M, one-loop format for 100K
Approximately 85 miles of singletrack and 20 miles of forest service roads
Total elevation gain/loss is ~21,000 feet
Remote, mountainous terrain through Lake Wenatchee, Entiat, and Chelan ranger districts
Runners must carry all gear and food from the start or resupply point
Natural water sources only (streams and rivers)
No course markings, no aid stations, no pacers
Logistics
Swag & Medals
Checkpoints staffed by volunteers for safety only
One resupply point after the 100K mark (for 100M runners)
All finishers receive bragging rights and entry into one of the most storied ultras in North America
Non-profit race; all proceeds benefit local Search and Rescue and military veteran support groups
Getting There
Race start is located in the Chiwawa River Valley near Leavenworth, WA
Participants must be self-sufficient; no shuttles or formal parking setup detailed
Camping and lodging are available in nearby Leavenworth or Lake Wenatchee State Park
Driving Directions
Requirements
21000
Policies
Race Policies
No refunds unless the race is canceled
Race is entirely self-supported; no pacers, no crew access except at designated checkpoint
GPS navigation, water purification, and survival planning highly recommended
Qualification standard enforced for 100M entrants
Land Acknowledgement
The Plain Endurance Runs take place on the traditional lands of the Wenatchi, Yakama, and other Indigenous peoples who have lived in and stewarded these mountains for generations. We acknowledge their enduring relationship to the land and honor their continued presence and care for this region.
About Plain Endurance Runs
Disclaimer
We make every effort to provide accurate and up-to-date information on Kåduka, but details may change. Please always confirm the latest information on the official race website. See something that needs correcting? Send us a note at [email protected]