Trail Running calendar near Simi Valley 2026-2027

An evening trail event in Pasadena's Lower Arroyo Park offering 6K and 12K routes with chip timing and aid stations. The finish includes tacos and drinks and runners receive a commemorative shirt and wooden medal.

A 5K run or walk with a 282 step climb at Baldwin Hills Scenic Overlook in Culver City that benefits the Aztlan Athletics Foundation. Registration runs from 10/10/2025 to 12/31/2025 with a $45 fee.

A two-mile beach run in Hermosa Beach, California on August 1, 2026, organized by the Mira Costa Track and Cross Country teams. Registration runs April 17 to August 1 and the $30 fee supports the team.

A trail running event at Malibu Creek State Park on August 15, 2026 offering 50k and 25k courses, stocked aid stations, prize purse and festival amenities.

Two days of mud and obstacles in Moorpark on a 5K course with 15 major obstacles, rinse stations, and a Basecamp area with food trucks, vendors and music.

A 5k trail run at Red Rock Wilderness near Silverado, CA featuring fire roads and single track, 300 feet of climbing, one aid station, a cupless policy, and no pets allowed.

A one day community trail running festival in Los Angeles on August 29, 2026 with a 4 mile group run, expo, vendors, and a raffle.

A community running event at John Glenn High School in Norwalk on September 5, 2026, supporting Cerritos High School and honoring local history. Features a 3 mile in person and virtual option, a youth sprint and a high school invitational.

The 61st Mt Baldy Run to the Top on September 7, 2026 is a fundraising mountain trail race in the Angeles National Forest covering about 7 miles with 4,000 feet of ascent to the 10,064 foot summit, with proceeds aiding local services.

A 5 km Stadion obstacle race with 20 obstacles at Angel Stadium on September 12, 2026, plus a 1-1.5 km kids race and spectator access.

An evening trail running event in Griffith Park with a 10-mile team relay, a 5K solo race, and a 1K kid run. The course features skyline views, race photos, medals, live music, and team awards.

Experience a scenic multisport event at Crystal Cove State Beach featuring swim legs in the Pacific Ocean and a closed bike course on the Pacific Coast Highway. Choose from triathlon duathlon aquabike or trail run options.

10k trail race in Topanga through red sandstone cliffs and oak forest, with aid stations, beer garden, vegan tacos and a non timed 4.5 mile Hiker's Delight.

An urban event in downtown Los Angeles with a stair climb up 1,664 steps at the U.S. Bank Tower, an Urban Hike past major cultural sites, a Heroes Challenge category, and a virtual participation option.

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.

25K and 50K trail ultras on Mt. Wilson in the Angeles National Forest, featuring technical single track, regular aid stations, and significant elevation gain.

Trail race in Simi Valley on Sept 26, 2026 offering 50K, 30K and 15K courses through Rocky Peak, Las Lljas and Tapo Canyon.

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.

A 100 mile endurance run through the San Gabriel backcountry, held since 1986; the 2026 edition uses an out and back course from Loma Alta Park.

9.1 miles to the Mt San Antonio summit with 3,926 ft vertical gain on steep, exposed mountain trails; course capped at 500 entrants in Angeles National Forest.