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 5120′, 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.

👍 Run Pick of the Month - Snohomish Women's Run

📍 Everett, WA - May 9, 2026

 An empowering, inclusive, and unforgettable Pacific Northwest race!

💸 SAVE 10% On Your Entry. Use Code RG10

😄 Why We Like This Run
✅ A women-centered run welcoming all genders and abilities.
✅ Fast and flat courses with aid stations and pace leaders for the half-marathon.
✅ Long-sleeve tech hoodie for every runner and supporting local charities.

Run along the scenic Snohomish River in Washington on flat, fast, and well-supported 5K, 10K, or Half Marathon courses, perfect for personal bests or a motivating day on the run.

Take part in this celebration of strength, community, and movement!

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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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