Oregon · 100K
Waldo 100K
Waldo 100K is a 100K event held in Oakridge, Oregon. It was last held on August 1, 2026 and is usually run in August; the next date hasn't been announced yet. About 136 runners take part across all distances.
- Usually held
- August
- Location
- Oakridge, OR
- Field size
- ~136 runners
Race details
- Last held
- August 1, 2026
- Usually held in
- August
- Location
- Oakridge, Oregon
- Distances
- 100K
- Field size
- About 136 runners
- Course
- 11000 ft gain
- Registration
- ultrasignup.com
- Official website
- waldo100k.org
Registration, course & weather
- Registration status
- Registration status as last checked October 19, 2026: completed
- Start time
- 4:00 AM PDT
- Course profile
- Loop course; Road surface; 11000 ft gain, 11000 ft loss (estimated from third-party elevation data)
About the Waldo 100K
Waldo 100K in Oakridge, OR.
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Waldo 100K: common questions
- When is the Waldo 100K?
- The next date hasn't been announced in the listing yet. The race is usually held in August. Check the organiser's website for the official date.
- Where is the Waldo 100K held?
- In Oakridge, Oregon.
- What distances does the Waldo 100K offer?
- 100K.
- How many people run the Waldo 100K?
- About 136 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
- How do I register for the Waldo 100K?
- Registration is handled by the organiser at ultrasignup.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Waldo 100K?
- Registration status as last checked October 19, 2026: completed. $195 (from waldo100k.org, checked October 19, 2026).
- What time does the Waldo 100K start?
- 4:00 AM PDT.
- What is the course like at the Waldo 100K?
- Loop course; Road surface; 11000 ft gain, 11000 ft loss (estimated from third-party elevation data).
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