For the 100 Miler, you must have completed a TRAIL 100 mile, the Plain 100K or equivalent prior to entry.
The Plain races take place on USFS trails and roads in the Cascade mountains in the Lake Wenatchee, Entiat, and Chelan ranger districts. There are approximately 75 miles of trail and 25 miles of forest service roads, all quite remote. Elevation gain/loss is roughly 21,000 feet. This is a self-supported event. There is one re-supply point after the first 100K. Your water sources are creeks and rivers on the course and you will be carrying all your food and necessary gear from the start, or from the resupply point. Train for long, totally self-sufficient segments on a fairly difficult course with great scenery.
Local time: 4:38 PM