The Rubicon

OCT

24

2026

Tackle The Rubicon, a rugged self supported backcountry run around Oxbow Reservoir in the northwestern Sierra Nevada on Oct 24, 2026. Choose from tough 15, 30 or 43 mile routes with massive climbs and water crossings.

Sat 24 Oct 2026

Foresthill, California

Registration Facebook

43 miles 30 miles 15 miles

Always double-check with the organizer's website! This page may contain affiliate links.

Event overview

The Rubicon is a very difficult, remote on- and off-trail foot race in the backcountry of the northwestern Sierra Nevada. The event is scheduled for Oct 24, 2026 and takes place at Oxbow Reservoir, CA. It is not an official race; organizers describe it as a "fatass" group run. There are no course markings, no aid stations, no staff, and no medical team. Registration closes Thu, Oct 22.

Routes

The Requisite: 15+ miles; ≈6,700 ft gain; 3 hill climbs; 2 water crossings.
The Resonant: 30+ miles; ≈12,700 ft gain; 6 hill climbs; 6 water crossings.
The Revenant: 43+ miles; ≈19,300 ft gain; 8 hill climbs; 8 water crossings.

Eligibility and format

The event offers multiple route options with substantial elevation gain and multiple water crossings. Participants must complete The Requisite before attempting The Resonant in the future, and must complete The Resonant before attempting The Revenant. The format requires self-reliance due to the lack of course support and emergency services. Visit the organization's website for the most recent information.