Trail Running calendar near Castaic 2026-2027

We have found 78 Trailruns within 80 miles of Castaic. See below where and when you can find the races.

Experience a 9.1 mile mountain race at Mt Baldy featuring nearly 4000 feet of vertical gain. High altitude trails lead participants to the 10064 foot summit for a true alpine test in the Angeles National Forest.

Run a scenic 5K on the shaded, groomed horse trails of Palos Verdes Peninsula. The event supports Strides in Recovery, a nonprofit helping people in addiction treatment through running. Participants receive a medal, t-shirt, and can enjoy a..

That's No Moon Trail Races offer a rugged adventure on remote, challenging terrain in California's Santa Ana Mountains. Runners can choose from 50-mile, 50K, or 30K courses through the Cleveland National Forest. The event includes well-supp..

Experience the iconic landscapes of Vasquez Rocks at the SPACEROCK Trail Race. Choose from distances including 5k, 10k, 15k, or a Half Marathon through famous Southern California filming locations.

Experience scenic singletrack and natural terrain at Hahamongna Watershed Park in Pasadena with options for a trail half marathon, 10K, or 5K on Sunday, October 18, 2026. Perfect for trail runners seeking a challenging yet runnable course.

The No Name Trail Races offer a 50K, half marathon, and 5K on scenic trails in Cheeseboro National Park. Participants receive finisher medals and can enjoy post-race tacos and a beer garden. The event is part of a larger trail series with a..

November 2026

The Saddleback Marathon is a trail running event taking place on November 7, 2026, in Silverado, California. It is held in the Trabuco District, with the race being rerouted to start from Black Star Canyon Road. The event offers four race d..

A Thanksgiving tradition in Santa Clarita Central Park. Choose between a hilly 5K cross country course or a 1K event for younger participants. Proceeds benefit local youth track and field programs.

Experience a Thanksgiving tradition in the Santa Monica Mountains with trail races featuring coastal views. Enjoy a festive atmosphere with a taco breakfast, beer garden, and distances ranging from a 5k hike to a competitive half marathon.

Celebrate Thanksgiving morning with a scenic 5K or 10K run along Huntington Beach to fund clean water projects for communities in need around the world.

December 2026

The Island View Endurance Run returns to Goleta, California in December 2026. Runners can choose from five distances, from a 12K to a 100-mile ultramarathon. Registration opens in April.

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.

Experience the coastal beauty of Point Mugu State Park in Malibu. Choose between 50 mile, 50K, and 30K trail distances at this popular California endurance event.

January 2027

Traverse the entire Backbone Trail in the Santa Monica Mountains during this 68 mile ultra. Choose between a solo run or a relay team and experience over 13,000 feet of elevation gain with Pacific Ocean views.

Event Overview This event takes place in Griffith Park, Los Angeles. It offers several trail run and hike distances. The start/finish location is on a fire road just north of the Old Zoo. Distances Participants can choose from the following..

Tackle scenic trails in Griffith Park with routes offering iconic views of the Hollywood Sign. Choose from an 8-mile hike, an 8K, a 5K, or a kids' run. All participants receive a finisher's medal and a t-shirt.