menu account_circle

Chimera 100


Distancia Ultramaratón - 80,47km

Acerca de Chimera 100

The Cleveland National Forest, nestled in the bustling greater San Diego area, spans a modest 460,000 acres intersecting parts of Orange and Riverside Counties. Providing ample recreation, sprawling mountain vistas, and an abundance of wildlife and natural resources, visitors don’t have to travel far to explore a wilderness environment within urban boundaries. This National Forest is host to The Chimera 100 Mile trail race.

The Chimera is a figure out of Greek mythology. She is a fire breathing animal comprised of a lion, a goat, and a serpent and those who have participated in her race refer to it simply as "THE BEAST". The Chimera 100 Mile race takes place on a figure eight course that starts and finishes at Blue Jay Campground, located in the Trabuco region of the Cleveland National Forest. The views from the summit of Santiago Peak can be spectacular on a clear day. Included are the Queen Mary in Long Beach harbor, downtown Los Angeles, and the beach cities of the OC. The light shows at night can be extremely dramatic with the mountains surrounded by a sea of city lights. In a population of almost 10 million, fewer that 1/100 of a % of the people in the greater LA area have seen these views.

The Trabuco Wilderness trails are maintained by volunteers. All entrants (including potential pacers) are asked to donate at least six hours of trail maintenance on the Chimera trails. If you are located outside Orange County, Riverside, LA or San Diego Counties, trail maintenance or other services in a National Forest is acceptable.



  • 100km

100 Mile

  • 160,934km



Camping is available at Blue Jay Campground near Start/Finish line we will have 8 group camp sites that can accommodate up to 10 campers per site @ $10 per tent. Please park in manner that allows multiple cars per site. Lodging is also available at: Best Western Lake Elsinore Inn & Suites and Best Western Capistrano Inn.

Puestos de avituallamiento

There are 18 well stocked Aid Stations, each captained by a veteran ultra runner, many of them RD's.

Medallas de finalización

Every runner will receive a buckle when they finish. We anticipate different buckles for those finishing under 24 hours and 30 hours. Winners will receive special awards post race event.

Almacenamiento de equipos

Four drop bag locations on the course. Drop bags must be placed in designated areas by 00 a.m. At each AID STATION, you will be responsible for placing your drop bag in the RETURN area after leaving the aid station for the last time. There will be ONE bag return run on Saturday afternoon and one more run after the last competitor leaves the last Aid Station. Retrieving your drop bags is your responsibility.

Tiempo máximo

35 hours


All vehicles must display a National Forest Adventure Pass or equivalent. If you do not have a yearly pass, you will have to purchase 2 one day passes. Passes will be available at registration. If traffic is stacked all the way to the gate, you will be required to either pay to park in a campsite or in the one of the day use parking areas on Long Canyon Road.




Blue Jay Campground

Cleveland National Forest,us




Santiago Peak

Queen Mary


The Chimera 100 Mile trail race takes place on a figure eight course that starts and finishes at Blue Jay Campground, located in the Trabuco region of the Cleveland National Forest. Chimera 100 Mile trail race has over 22,000′ of elevation gain and is rated one of the toughest trail 100 mile races in the country. Course changes may occur prior to race day and/or during the race due to acts of fires and floods.

La información de la carrera se ha encontrado en el sitio web oficial del evento o en otras fuentes de acceso público. Consulta siempre el sitio web oficial para obtener la información más actualizada sobre la carrera. Si falta algún dato o hay algún error, envíanos un correo electrónico para informarnos..