Trail Running calendar near Simi Valley 2026-2027

Into the Wild is a 5k trail run at Saddleback Wilderness on July 15, 2026, over fire roads and single track with 300 ft of elevation gain. Entry is limited to 150 runners and there is no race day registration.

A five-week summer cross country series at College of the Canyons in Valencia, running Thursday evenings from July 16 to August 13, 2026. Main races cover three miles and a kids race takes place on the Cougar Stadium track.

Trail races on the Harding Truck Trail in the Santa Ana Mountains offering 50K, 30K and 15K courses with significant elevation gain, aid stations, required shuttle access and typically hot July conditions.

Tough Mugu is a coastal mountain trail running event at Point Mugu State Park on July 18, 2026 offering a 25k and shorter course options. The event includes chip timed results, a finisher medal and race tee, and a cash prize for the 25k pod..

Hot to Trot offers 5k, 10k, 15k and a half marathon in Griffith Park on July 18, 2026. Routes run on a hard packed dirt horse trail with an aid station at the turnaround and free parking at Crystal Springs Picnic Area.

A Better World Running presents Rockin' Summer at Whittier Narrows on July 19, 2026 with 5k, 10k, 15k and half marathon options on marked park loops, featuring aid station support, finisher medals, photos, live results, and on-site registra..

Aztlan XC Classic is a 5K event in Elysian Park, Los Angeles on July 25, 2026, with youth and adult race categories and differing registration options. Proceeds support the Aztlan Athletics Foundation's camps and scholarships.

A free, social, non-competitive trail group run on July 25, 2026 in Newport Coast, CA. The route is about 6.5 miles with roughly 1,000 feet of gain on hilly, rocky trails; participants should have trail experience and bring hydration.

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 race in Malibu Creek State Park offering a **50k** with 5,511 ft climbing and a **25k** with 2,783 ft, stocked aid stations, a $3,500 50k prize purse, and series points toward the Bulldog Challenge.

Two day 5K mud run in Moorpark, CA on August 15 and 16, 2026. The course includes 15 major obstacles, deep mud pits and rolling hills, with rinse stations and a Basecamp area featuring food trucks 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.

Dirt Circus Los Angeles is a one day community running festival on August 29, 2026 that pairs a four mile group trail run with an expo of brands, race directors, vendors, food, 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 Stadion 5 km obstacle race with 20 obstacles at Angel Stadium of Anaheim on Sep 12, 2026, plus kids races and spectator tickets; the event lists an average finish time near 1 hour 32 minutes and a 4.8 rating from 40 testimonials.

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.