Trail Running calendar near Placerita Canyon 2026-2027

A Topanga trail event with a sunset 10k featuring about 1,360 ft of vertical and a non-timed 4.5 mile Hiker's Delight. The event offers aid stations, a 21 plus beer garden, plant-based tacos, sports massage and awards.

A 3.1 mile trail event at Ascot Hills Park in Los Angeles with chip timing and views of Dodger Stadium and the Hollywood sign. Proceeds support the Wilson High School Fire and Police Magnet Cadet Program and Ascot Hills Park.

Trail ultras on Mt. Wilson in the Angeles National Forest offering 25K and 50K distances, technical single track, marked aid stations, panoramic views, and enforced cutoffs.

Trail races of 50K, 30K and 15K around Corriganville Park in Simi Valley with sandstone outcrops, oak savannahs, water sources and mountain and ocean views. A portion of proceeds supports the Challenged Athletes Foundation.

A themed run in Long Beach on September 27 with Half Marathon, 10K, 5K, a family mile and kids dash, ocean views, chip timing and a pizza themed finish line festival.

An annual 100 mile trail race through the San Gabriel back country in the Angeles National Forest, held since 1986. The 2026 edition uses a revised course with start and finish in Altadena and is a Western States and UTMB qualifying race.

A 9.1 mile loop from the Mt Baldy ski area to the 10,064 ft summit of Mt San Antonio via exposed ridgeline and technical alpine trails, then back to the parking lot. The race is capped at 500 runners.

A 5K at Ernie Howlett Park on the Palos Verdes Peninsula with a shaded horse-trail course, in-person and virtual options, and a fundraising entry where raising $100 covers registration and benefits Strides in Recovery.

Trail races of 50 Mile, 50K and 30K through Cleveland National Forest near Silverado CA on remote forest roads with significant climbing, staffed aid stations, drop bag support, and specific crew and pacer rules.

Ruff Run California on 10/17/2026 in Phelan, CA presents a 20 acre obstacle course for people and their dogs with over 20 obstacles, 4K and 1K options, and an after party with music, games and vendors.

Trail races at Vasquez Rocks in Agua Dulce on October 17, 2026 offer looped 5K, 10K, 15K and Half Marathon+ courses across rocky, sandy and single track terrain. The 15K and Half Marathon+ include a roughly 500 foot black hole tunnel.

Trail races at Hahamongna Watershed Park on October 18, 2026 offering half marathon, 10K and 5K distances. The half marathon is presented as the organizer's flagship trail event and is reported to sell out quickly.

A trail running event at Caspers Wilderness Park on October 24, 2026, offering 10k, half marathon, 35k, marathon and 50k courses. Courses are described as marked and supported, with an athlete guide and past results available.

A trail running event in Chesebro Canyon near Agoura, California offering 50K, a trail half marathon and a 5k on varied singletrack and fire roads. Aid stations, finisher medals, post-race tacos and a beer garden for ages 21 and up.

A multi distance trail event on the Gaviota Coast near Santa Barbara, with routes to Gaviota Peak and ridgelines. Distances range from 12 kilometers to 100 miles and proceeds support local trail maintenance.

A timed trail event at Crystal Cove State Park in Laguna Beach on October 31, 2026, offering separate 6 hour and 4 hour options, on-site parking with a $15 card-only fee, and a registration deadline of Oct 28.

Trail races from Black Star Canyon near Silverado, CA, with marathon, new 25k, half and 10k distances; marathon gains 4,244 ft and multiple aid stations are located along the route.

A trail running event in Avalon, Catalina Island with a 13.1 mile half-marathon, a 10K, a 1K kids run, and a Triple Crown challenge offering coastal views and inland climbs.

Trail races on Rancho San Fernando Rey in the Santa Ynez Valley feature mountainous ranchland, creek crossings, vineyards, oak groves, and views of Loma Alta Mountain. Distances include 51 KM and 25 KM.

Fixed-time trail events of three, six and eight hours on an approximately 2.75 mile loop at O'Neill Regional Park in Trabuco Canyon. Wooded trails with about 500 feet of gain per loop and a main aid station with food and hydration.