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Waldo 100K

Oakridge, United States • 2 Aug 2025

The Waldo 100K Ultramarathon is a challenging race set in Oakridge, Oregon, featuring a 100K loop course that begins at the Willamette Pass Ski Area. Participants will navigate through mountainous terrain, including peaks like Fuji and Maiden Peak, while enjoying stunning views of Waldo Lake. The event is designed for experienced ultrarunners, with a single start time and specific cutoffs for various checkpoints. The race also emphasizes sustainability through its participation in the Trail to Zero™ program, allowing runners to contribute to carbon offset initiatives. Registration for the lottery opens in January, with an entry fee of $175. Visit the organization's website for the most recent information.

United States Oregon Oakridge

Race information

Website
UTMB 100K
100 km
2890 m+
Waldo 100k
Visit the organization's website for the most recent information.
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