Available distances
Races on the programme
| Race | Distance | Elevation gain |
|---|---|---|
| 100 Mile | — | 21,001 ft |
| 100K | — | — |
About
The Plain 100 Mile Endurance Run runs on trails and forest roads through the Cascade Mountains near Plain, Washington, across the Lake Wenatchee, Entiat, and Chelan ranger districts. The course covers 75 miles of trail and 25 miles of forest road, entirely through remote, isolated terrain, with a 100K option also on offer.
Expect roughly 21,000 feet of both climbing and descending over the full 100 miles. Train for a steep, demanding course set against genuinely beautiful mountain scenery in the heart of Washington's Cascades.
Prepare for Plain 100 Mile Endurance Run with RunRun
An AI-generated training plan, adjusted every week based on your real sessions. Built around your goal, current level and race date.
- Personalized plan based on your VO2max, history and weekly availability
- Strava and Garmin sync: your sessions are analyzed and the plan adapts
- Target paces, long runs, key sessions: everything is calculated for race day
Races nearby
Other upcoming races around Plain.
Plain Endurance Runs
Sep 19, 2026 · Leavenworth, WA · 14 mi away
62 mi · 100 mi
Mad Meadows 50
Oct 10, 2026 · Leavenworth, WA · 14 mi away
31 mi · 50 mi
Leavenworth Marathon
Oct 3, 2026 · Leavenworth, WA · 14 mi away
13 mi · 26 mi
Wenatchee Marathon
Apr 17, 2027 · Wenatchee, WA · 29 mi away
26 mi · 13 mi · 6.2 mi · 3.1 mi
Teanaway Country
Sep 19, 2026 · Cle Elum, WA · 44 mi away
100 mi
Teeny-Way
Sep 19, 2026 · Cle Elum, WA · 44 mi away
31 mi