⚠️ 2027 edition: provisional information
The date is estimated from the 2026 edition (August 1, 2026), on the same day of the week. Courses, start times, fees and description are carried over from the previous edition: check them on the official website. This page will be updated as soon as the organizer publishes them.
Available distances
About
The Waldo 100K Trail Run near Oakridge is a demanding 100K (62-mile) loop on July 31, 2027, starting at 4 a.m. and finishing at Willamette Pass ski area (elevation 5,115 feet / 1,559 m), about 70 miles (112 km) east of Eugene. The course climbs several summits, including Fuji, the Twins and Maiden Peak, mostly on singletrack, with views of Waldo Lake and the Cascades.
Remote stretches, big elevation gain and technical terrain make it a tough course that is not recommended for beginners. The race is a qualifier for the Western States 100-Mile Endurance Run and has an 18-hour limit.
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