Trail Running calendar near Rolling Hills Estates 2026-2027

A trail running event in October at Hahamongna Watershed Park offering 5K, 10K and a hilly half marathon across mixed single track and fire roads.

A trail event at Wildwood Canyon State Park featuring a timed 8 hour loop format and a single-loop 6K, with aid stations, vendors, morning live music, and an afterparty at a local brewery.

No Name Trail Races in Agoura, CA on October 24, 2026 feature trail courses through Chesebro Canyon, including a 50K, a 14.1-mile half-marathon, and a 3.6-mile 5k, with aid stations, finisher medals and post-race refreshments.

A rugged half marathon on Santa Cruz Island featuring oak canyons, five creek crossings, steep climbs and exposed ridge running. Organized by Ventura County Sheriff’s Search and Rescue, proceeds benefit SAR charities and entry includes boat..

A multi-distance trail event at Lake Perris featuring a 200 mile race with over 44,000 feet of elevation gain, looped courses, on-course aid stations, group camping, and cash prizes for top finishers.

Trail races at Caspers Wilderness Park in San Juan Capistrano across multiple distances including 10k, half marathon, 35k, marathon and 50k. The event features marked courses, aid stations and participant merchandise.

A Halloween trail event at Crystal Cove State Park offering 6 hour and 4 hour timed options, organized by Sunshine Trail Racing. Registration is on UltraSignup and closes October 28.

Trail marathon and shorter distances on November 7, 2026 in Silverado, CA, routed out of Black Star Canyon after campground closures. Courses follow Black Star Canyon into Mariposa Reserve with substantial elevation gain.

Run through the historic streets of Avalon and the rugged interior trails of Catalina Island. Choose between a half marathon, 10K, or kids fun run featuring stunning Pacific Ocean views and island landmarks.

A fixed-time trail run at O'Neill Regional Park on November 14, 2026, offering 3, 6 and 8 hour formats on a roughly 2.75 mile loop with varied single- and double-track terrain and a major aid station at the start/finish.

A trail event in Yucaipa, California on November 14, 2026 offering 21, 10 and 4 mile routes through the Crafton Hills, with notable elevation gain and 10 percent of fees donated to local conservation.

Trailsgiving at Elysian Park on November 14, 2026 features marked out and back trail routes on hard packed dirt with hills. Distances include 5k, 10k, 15k, and a half marathon with on-course aid and finisher medals.

A 30th annual community 3.14 mile run in Ventura on November 15, 2026, held on a new course with online registration only. The event aims for zero waste and includes a Patagonia store bib discount the week after the race.

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.

Trail races in Griffith Park Los Angeles on November 21, 2026 with multiple distances from 10 K to 50 K. Organized by Keira Henninger Events and open for registration from July 1, 2026.

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.

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.