Fourmidable

FOURmidable is an exciting trail running event set in the stunning Sierra Nevada foothills of Auburn, CA. Scheduled for February 21, 2026, the event features multiple race distances, including 50K, 35.5K, half marathon, and 13K, catering to runners of various skill levels. Participants can enjoy the challenging terrain while competing for prize money, which is supported by community donations matched by the organizing body, Singletrack Running.

Additionally, a special award of $500 is offered to any runner who breaks the current course record in the 50K category. This event promises a thrilling experience for all involved. Visit the organization's website for the most recent information.