Oakridge, Oregon · Trail
Official site ↗Waldo 100K
A classic Oregon Cascades 100K from Willamette Pass, run since 2002 over Fuji Mountain, The Twins, and Maiden Peak with a 4 a.m. start and an 18-hour cutoff.
Started Saturday, August 1, 2026 at 4:00 AM GMT-7
Distances
- Distance
- 100 km (62 mi)
- Cutoff
- 18 hr
WSER 2027 qualifier (sub-18:00)
| Distance | Cutoff | Notes |
|---|---|---|
| 100 km (62 mi) | 18 hr | WSER 2027 qualifier (sub-18:00) |
Course records: Marci Klimek 10:21:04 (2023) · David Laney 9:05:42 (2013)
Weather today
Weather in Oakridge, Oregon today: high 65°F (18°C), low 46°F (8°C), 3% chance of precipitation.
Forecast via Open-Meteo, refreshed hourly.
About
The Waldo 100K starts in the dark at Willamette Pass Ski Area, 5,120 feet up in the Oregon Cascades southeast of Eugene, and climbs over Fuji Mountain, The Twins, and Maiden Peak, its 7,818-foot high point, on a course that skirts the shore of Waldo Lake. It has run since 2002, and its name plays on the lake and on the hunt for high points along the way.
The race starts at 4:00 a.m. and holds an 18-hour cutoff, so a finish before 10:00 p.m. earns the finisher's hat. Entry is by lottery, and a finish counts as a Western States 100 qualifier.
Course
From Willamette Pass Ski Area (5,120 feet) in the Oregon Cascades, over Fuji Mountain, The Twins, and Maiden Peak (7,818 feet), along the shore of Waldo Lake. The race starts at 4:00 a.m. and holds an 18-hour cutoff.
How to register
Entry is by lottery. The race has run since 2002 and caps its field to protect the wilderness course.