Trail Running calendar near Brea 2026-2027

A long distance trail event in Malibu covering about 70 miles with roughly 13,000 feet of elevation gain and a 36 hour time window, with a required dry pack weight of 25 pounds and both paid and volunteer ticket options.

Terrain Race Irvine on November 21, 2026 is a mud and obstacle 5K at Oak Canyon Park featuring mud pits, walls, ropes and monkey bars, plus pre-race and finish-line festivals with food, music and finisher medals.

A Thanksgiving Day community run in Santa Clarita offering a 5K cross country course through Central Park and a 1K for children. The event benefits the Santa Clarita Track Club and awards medals to the first 600 competitors.

Trail races in the Santa Monica Mountains near Reseda include a half marathon, 10k and 5k Fun Run and Hike with fire road and singletrack terrain, finisher medals, race shirts and post-race food and beer.

A Thanksgiving morning 1K, 5K and 10K along Huntington Beach that passes the pier and Surf Museum. Participants support clean water projects with 85% of every dollar raised going toward drilling wells.

One mile loop ultra on hardpacked dirt with timed 3, 6, 12 and 24 hour options plus relay teams. Live chip timing, free on course camping, continuous food service, and a 31 hour buckle challenge to reach 100 miles.

A 28k trail run in Fremont Canyon at Irvine Regional Park featuring about 3800 feet of elevation change and four aid stations. The course runs on fire roads, is cupless, and participants are asked to carry personal hydration.

Ray Miller 50/50 in Point Mugu State Park, Malibu, CA on December 5, 2026 offers 50 mile, 50K and 30K options. Registration opens April 1 and closes September 1.

A night trail race in Tarzana on December 5, 2026, with lighted routes through the Santa Monica Mountains. Offered as 5K and 10K, the event has notable elevation, aid stations, required headlamps, and post race medals and shirts.

A holiday themed Jingle Bell run in Valencia on December 6, 2026 offering 5k, 10k, 15k and a half marathon on marked out and back loops with aid stations and finisher medals.

A Last Person Standing race in Yucaipa, CA where runners must complete a repeated *4.167 mile* loop each hour until one remains. Basecamp offers warmth between laps and limited camping is available at Five Winds Camping.

Trail races at Crystal Cove State Park near Newport Beach include a 15K, 6K and Kids 1k on varied single track and fire roads, with shirts, finisher medals, free photography, breakfast options and a post race beer garden.

Trail races at Daley Ranch near Dixon Lake offer 10 Mile, 10K and 5K courses from El Caballo Park with single track and dirt roads. The 10 Mile climbs Standley Peak for a 360 degree view and the field is limited to 300 runners.

A multi-distance run at Griffith Park on December 19, 2026, held on a marked dirt horse trail with aid at the turnaround. Registration includes a finisher medal, goodie bag, free photos and results posted after the event.

Trail races on Catalina Island featuring a 50 Mile and a 50K course that start and finish in Avalon. Organized by the Avalon Lions Club to raise funds for island charities and schools, with ocean views and possible bison sightings.

Experience a diverse trail running event in Escondido featuring everything from a 50 mile ultra to a stroller friendly 5k. Explore the valley floor or climb to the summit of Raptor Ridge in this cupless race series.

A 68 miles trail event across the Backbone Trail in the Santa Monica Mountains with about 13,600 feet of climb and relay options for teams of two, three, or four. Field is limited to 200 entrants and solo runners must have completed a prior..

A Spartan Race weekend at Lake Perris State Recreation Area on Jan 23 and 24, 2027 features 5K, 10K and 21K obstacle races plus a kids race. The course is described as flat and fast with lakeside views and park facilities.

Trail run and hike events in Griffith Park on January 24 2027, featuring 8M, 8K, 5K and a 2.2K kids run with marked courses, aid stations, participant shirts and finisher medals.

Trail running and hiking events in Griffith Park on 01/24/2027 with 8 Mile, 8K, 5K and 2.2K courses; the 8 Mile is an out-and-back to a Hollywood Sign viewpoint. Marked courses have aid stations, chip timing, finisher medals and event shirt..