Trail Running calendar near Glendora 2026-2027

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 coastal 1K 5K and 10K walk and run in Huntington Beach that raises funds with World Help to drill clean water wells serving communities worldwide.

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 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 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.

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.

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 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 offering 100K, 50 mile, 50K, marathon and 30K distances; the 100K is a 2026 WS100 qualifier and registration opens July 1, 2026.

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.

Timed 6-hour, 12-hour, and 24-hour events on a rolling 2.2 mile loop at Will Rogers State Historic Park in Pacific Palisades, with relay options, a stocked aid station each loop, and crew and pacer allowances.

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..