Trail Running calendar near San Gabriel Mountains 2026-2027

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 is a set of trail races at Point Mugu State Park in Malibu on December 5, 2026, offering 50 mile, 50K and 30K distances. Registration opens April 1 and a waitlist is available.

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 run in Valencia offering 5k, 10k, 15k and a half marathon on looped trails with aid stations each loop. Entries include finisher medals, goodie bags, photos and posted results.

A Last Person Standing race in Yucaipa, CA on December 11, 2026 where runners repeat hourly 4.167 mile loops until one person remains. The overnight event uses foothill trails, headlamps, a basecamp with firelight, and limited camping.

A trail running event at Crystal Cove State Park near Laguna Beach with 15K, 6K and a Kids 1k, marked courses and aid stations. The 15K carries a $2,000 prize purse and the event includes race shirts, medals, breakfast and a beer garden.

Reindeer Run at Griffith Park on December 19, 2026 offers 5k, 10k, 15k and half marathon routes on a shared hard packed dirt trail with an aid station, finisher medals, photos, live results and event app features.

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.

A 68 mile ridge-line trail race across the Backbone Trail in the Santa Monica Mountains with about 13,600 feet of climbing. Solo runners need prior 50 mile trail experience; relay teams of 2, 3, or 4 are permitted.

Jan 23 and 24 2027 Spartan weekend at Lake Perris featuring Sprint 5 km, Super 10 km, Beast 21 km and kids races. The course is described as flat and fast and includes multiple obstacles.

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 events in Griffith Park on January 24, 2027, including an 8 mile out and back to the Hollywood Sign viewpoint, an 8K, a 5K, and a 2.2K kids loop with aid stations, timing, shirts, and finisher medals.

A 24 hour individual and team trail race at Lake Perris featuring repeated laps of the Molcajete 1.0 loop of about four miles with significant climbing. Teams of four run in a fixed rotation and awards go to top individuals and teams.

Trail races in Calabasas, CA on January 30, 2027 offer multiple distances from 30K to 100K, with the 100K serving as a 2026 WS100 qualifier. The event is organized by Keira Henninger Events and is held at 1925 Las Virgenes Road.

A trail event in Big Dalton Canyon offering a **50K solo**, a 4-person 50K relay, and a **10K loop**, with over 9,000 feet of elevation and proceeds to the Wildland Firefighter Foundation.

A Better World Running holds the Super Valentine 5k, 10k, 15k and half marathon at Griffith Park on February 14, 2027. The open, looped course runs mostly on a hard packed dirt horse trail with an aid station at the turnaround.

Timed 24 hour, 12 hour and 6 hour events on a rolling 2.2 mile loop at Will Rogers State Park in Pacific Palisades, CA. Solo entries and relay teams are accepted and a stocked aid station is available each loop.

A multi-distance trail event at Tejon Ranch near Lebec, California on February 27, 2027 featuring 100k, 50k, 25k and 11k courses on fire roads, with aid stations, chip timing, live tracking, camping options and a finish festival with food a..

A multi-distance trail event on Catalina Island in Avalon on March 13, 2027, featuring a marathon, 10K, 5K and a kids run. The 49th annual edition is California's State Off-Road Marathon Championship and includes a Triple Crown challenge.

Tough Mudder Los Angeles on March 20, 2027 at Lake Elsinore Raceway is a mud obstacle event over scrubland and motor-cross terrain. Race options include 15 plus km, 5 to 8 km, Infinity laps, spectator access, and group packages.