Logo

The Rubicon

Foresthill, United States • 24 Oct 2026

Event overview

The Rubicon takes place Saturday, Oct 24, 2026, at Oxbow Reservoir, CA, in the backcountry of the northwestern Sierra Nevada. The event is an unofficial "fatass" group run that includes on- and off-trail terrain. There are no course markings, no aid stations, no event staff, and no medical team. The route area includes Blacksmith Flat Spur (FS Rd 23-002). Registration closes Thu, Oct 22 at 11:59 PM PT.

Routes and eligibility

  • 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

Completion rules apply: participants must first complete The Requisite before attempting The Resonant in the future, and must complete The Resonant before attempting The Revenant. Visit the organization's website for the most recent information.

United States California Foresthill

Race information

Registration Facebook
43 mi
The Revenant
30 mi
The Resonant
15 mi
The Requisite
Visit the organization's website for the most recent information.
Trail runs nearby

Folsom Lake Point to Point Trail Half Marathon

El Dorado Hills

Run a scenic point to point trail half marathon along Folsom Lake, winding on single track through oak groves, grassy slopes and Sierra views. Expect technical sections, gentle rolling hills and shuttle service back to the start.

Doomsday - Cool, CA

Cool

Doomsday is a trail run in Cool, California on December 13 with 50K and Half Marathon routes across rugged high elevation terrain. Limited to 200 runners, this scenic but demanding race rewards finishers with medals and shirts.

Placerville's Holiday Jingle & Mingle Run

Placerville

...

Celebrate the season with Placerville's Holiday Jingle & Mingle Run on the scenic El Dorado Trail, offering distances from a kids run to a half marathon. Enjoy oak lined views, festive fun, aid stations and a commemorative medal at the fini..

Auburn Resolution Run

Auburn

Kick off the new year on the trails at Overlook Park in Auburn, CA with the Auburn Resolution Run. Choose 5K, 10K, 10 mile or virtual and earn a 2026 finisher medal for completing the course.