About This Race
The Canyons 100K stands as the marquee distance in this UTMB World Series event, drawing ultrarunners who seek legitimate Western States Endurance Run preparation without the full 100-mile commitment. The 62-mile course traverses the technical foothill terrain of the Sierra Nevada, where runners navigate the same challenging singletrack that defines California's most storied ultramarathon. Race day falls in late April, when the foothills shake off winter and the oak-studded canyons begin their transition to summer heat. This distance requires more than fitness. The course demands technical proficiency on rocky descents, intelligent pacing through repeated climbs, and refined fueling protocols across terrain that punishes overconfidence. For many runners, it serves as their proving ground before entering the Western States lottery, offering both the physical challenge and the mental preparation needed for June at altitude. Golden Ticket opportunities for podium finishers raise the competitive stakes considerably. The front of the pack typically features experienced ultrarunners with multiple 100K finishes, while mid-pack runners bring solid mountain racing credentials and deliberate race strategies. The combination of UTMB World Series status, Western States qualifying credentials, and genuine technical difficulty has established this as one of the most competitive 100K races in North America.
The route follows a challenging out-and-back configuration through the Sierra Nevada foothills between Auburn and Michigan Bluff. Runners encounter the full spectrum of Western States terrain: exposed fire roads through oak and manzanita, technical singletrack requiring careful foot placement, and canyon crossings that test both climbing power and descending control. The course crosses multiple aid station locations twice, allowing crew access at strategic points and giving runners mental waypoints to manage the distance.
While specific elevation figures aren't confirmed in available data, the terrain profile mirrors the relentless nature of the Western States course. The route never allows for sustained flat running, instead demanding constant adjustment between climbing and descending through terrain that becomes increasingly technical as fatigue accumulates. Footing varies from smooth dirt to embedded rock, with the latter sections requiring focused attention even from experienced trail runners.
Location
Practical Info
Late April conditions typically range from cool mornings in the 40s to warm afternoons reaching 70-80°F, though Sierra foothill weather remains variable and runners should prepare for both sun exposure and potential rain.
SMF - Sacramento International Airport
Auburn offers multiple hotel options and lies 30 miles northeast of Sacramento via I-80, making rental car access straightforward. Many runners choose Sacramento hotels for better availability and dining options, accepting the short drive to race headquarters.
Best For
Notable Features
The race operates within the UTMB World Series framework while maintaining its identity as the premier Western States qualifying event. Golden Ticket awards for top finishers provide direct Western States entry, bypassing the notoriously difficult lottery system. The course itself serves as an extended preview of Western States terrain, giving runners authentic preparation for the descents into and climbs out of the major canyons. Race organization benefits from decades of Auburn endurance running history, with aid station crews and volunteers who understand the specific demands of Sierra foothill racing.