The Rubicon
Foresthill, United States • 24 Oct 2026
The Rubicon
The Rubicon is a remote on and off-trail foot race held at Oxbow Reservoir, CA, in the northwestern Sierra Nevada. The event is organized by Skybreaker Racing and is described as very difficult and remote. It is presented as an informal "fatass" group run rather than an official race.
There are no course markings, no aid stations, no staff, and no medical team. Participants should be prepared for backcountry travel and self-support.
Route options include:
- The Requisite: 15+ miles; approx 6,700 ft gain; 3 hill climbs; 2 water crossings
- The Resonant: 30+ miles; approx 12,700 ft gain; 6 hill climbs; 6 water crossings
- The Revenant: 43+ miles; approx 19,300 ft gain; 8 hill climbs; 8 water crossings
Progression requirements apply: completion of The Requisite is required before attempting The Resonant, and completion of The Resonant is required before attempting The Revenant. Registration for the event closes Thu, Oct 22 at 11:59 PM PT. Visit the organization's website for the most recent information.