Trail Running calendar near Brea 2026-2027

Tough Mudder Los Angeles on March 20, 2027 at Lake Elsinore Raceway offers multiple obstacle courses from 5 to 8 km and 15 plus km, an Infinity multi lap option, finisher medals and a Mudder Village for spectators.

VALENCIA Trail Race in Valencia, California offers 10K, half marathon and 50K ultra on single-track trails with multiple climbs and panoramic ridge views. The event features chip timing, aid stations and a cupless policy to reduce disposabl..

Tough Mudder Los Angeles on March 20 2027 at Lake Elsinore Raceway features multiple distance mud runs with more than 20 obstacles, finisher rewards, an Infinity multi lap option, and Mudder Village spectator access.

An annual trail event at Soboba featuring the first NATRO Marathon Championship plus a half marathon, 5k and kids 3k for ages 12 and under. Native and Open divisions, finisher awards, and proceeds benefit the Noli Indian School scholarship..

A coastal trail race in Del Mar offering 10K and 5K out-and-back courses on hard-packed dirt, noted for flat, fast running, lagoon views, and a downhill finish; held March 27, 2027 as a championship qualifier.

Multi distance trail running and gravel bike events at Diamond Valley Lake in Hemet, California. Routes include lakeside loops, out and back courses, a stroller 5K and a kids fun run.

San Diego Spartan Event Weekend at Pala Fox Raceway on April 10 and 11, 2027 features a 5 km Sprint, a 10 km Super, kids races, spectator access, and a post-race festival with mud pits and rope climbs.