Waldo 100K

The Waldo 100K Ultramarathon is a demanding 100-kilometer loop trail race held at Willamette Pass Ski Area near Oakridge, Oregon. Starting at an elevation of 5,120 feet, the course ascends several mountains including Fuji, The Twins, and Maiden Peak, offering runners stunning views of the pristine Waldo Lake. The route primarily follows single-track trails through remote sections, making it suitable for experienced ultrarunners rather than beginners. The event emphasizes environmental responsibility by participating in the Trail to Zero™ carbon offset program, encouraging participants to mitigate their travel-related carbon footprint. The race is known for its challenging terrain and breathtaking natural scenery. Visit the organization's website for the most recent information.