Waldo 100K
Crescent, Oregon, United States
Aug 1, 2026 - Saturday
100k, Ultra
Race Information
The Waldo 100K Ultramarathon is a challenging 100K loop-type course starting at Willamette Pass Ski Area (70 miles east of Eugene, Oregon) at elevation 5120β², climbing up several mountains including Fuji, The Twins, and Maiden Peak before returning to the ski area. The route is mostly single-track trails with some fairly remote sections and has many incredible views of pristine Waldo Lake.
It is not a beginner-level ultra and participation in the race should not be taken lightly.
π Run Pick of the Month: Red, White & Blues 5K & 10K
πWest Linn - June 27, 2026
πΈ SAVE $10 On Your Entry. Use Code RUNRWB26
π Why We Like This Run
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Beautiful course that starts and finishes right on the heart of Willamette Falls Drive
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Free hot dog at the finish line
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Itβs a downtown takeover designed to kick-start your Fourth of July festivities.
Celebrate Independence Day at the Red, White, & Blues 5K & 10K, the ultimate summer tradition taking over downtown West Linn.
Whether you're chasing a new personal record or just looking for a festive stroll with the family, this event is the perfect way to ignite your holiday spirit.
π Training for This Race?
Get a personalized training plan that adapts for every run. RunDot analyzes every run and automatically adjusts your training plan.
π 2 weeks free for RunGuides runners
π Looking For More Runs Near Oregon?
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Race Facts
Race Size: 1 - 100
Elevation: Lots of Hills
Course Type: Trail
Boston Qualifier: No
Kids Run: No
Where to Stay
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