Trail Running calendar near Simi Valley 2026-2027

Experience the 16th annual spring edition of this trail event in Los Angeles. Runners can choose from multiple distances including a new 50 mile ultra and family friendly 10k routes through Griffith Park.

Experience a mud filled obstacle course at Oak Canyon Park in Irvine. Join the community for a day of mud pits and festival celebrations while supporting local charities through the Buy One Give One program.

The Billy Goat Mountain Climb on April 4, 2026 offers three trail distances: a 17 miler, a half marathon, and a 10K. It is a USATF sanctioned event featuring a mountain climb course. Registration is open through UltraSignup.

Experience the trails of Crystal Cove State Park with a 6K or 10 mile run or hike. Enjoy views of the Pacific Ocean and receive a finisher medal and event shirt as you navigate the terrain of El Moro Canyon.

Join this spring event at Griffith Park featuring distances from a 5k to a half marathon on a scenic dirt trail course. Enjoy a relaxed atmosphere with finisher medals and free race photos for all participants.

Santa Barbara Tough Enough The Santa Barbara Tough Enough is a 59-mile event that runs mostly along the Transverse Range ridgeline. It starts at Toro Canyon Park in Montecito and finishes at Nojoqui Falls Park near Solvang. The course is ru..

Experience the scenic beauty of the Santa Monica Mountains at the 41st annual Great Race. Choose from multiple distances including a panoramic half marathon, 10K, and 5K, followed by a large post-race celebration in Chumash Park.

Join this community focused event at Ventura Beach featuring multiple distances from 5k to a half marathon. Enjoy a relaxed run along beach path loops with finisher medals, photos, and snacks included for all participants.

Step back in time for a totally tubular run in Huntington Beach. This 80s themed event features a 5K, 10K, and Half Marathon on a flat, scenic oceanfront course. After the race, enjoy a costume contest, a beach party with a live DJ, and an..

The Run4Kids Ultra Running Party features a wide range of distances and timed events, from a half marathon to a 24-hour ultra. The event raises funds for youth running programs. It takes place in Corona, California.

Experience a historic trail event in Lake Hughes featuring distances from 30k to 100 miles. Conquer the terrain and earn a Western States 100 qualifying time on the scenic 100k or 100 mile courses.

Race through the ocean-view trails of Point Mugu State Park on a 21k or 10k course. Enjoy a finisher medal, breakfast tacos, and a post-race beer garden. It's part of a six-race half-marathon series with special awards.

Run among the only redwood grove in Southern California at Carbon Canyon Regional Park. Choose a 3, 6, or 12 hour timed event on a flat, shaded 2 mile loop. All finishers receive a custom medal in this intimate event limited to 150 particip..

Choose your challenge on the rugged trails of Woodland Hills. The Las Virgenes Canyon Ultra Trail Races offer six distances, from a 6K to a new 100K ultra. Enjoy fully supported aid stations and a festive post-race atmosphere.

Test your speed and navigation skills in this unsanctioned 4+ mile race through Chino Hills. Navigate four checkpoints across gravel and trail terrain to compete for cash prizes in a format where you choose your own route.

A 13.5-mile trail race on fire roads and single track in Limestone Canyon with 2,719 feet of elevation gain, two aid stations, cupless policy, and limited packet pickup options.

Celebrate the 14th anniversary of Aut2Run at CSU Channel Islands with distances from a 1 Mile Run to a 15K Hero Run. Support the local autism community through this inclusive event featuring both trail and road courses.

Support youth programs while running or walking through beautiful Griffith Park. This community trail event features a 5K course for all ages and offers medals and t-shirts to the first 500 participants.

Event Details Coyote Two Moon is a trail running event taking place over three days in early May in Ojai, California. The event is set in the Los Padres National Forest and features multiple race distances. The total number of participant s..

This trail race in Santa Clarita's historic Placerita Canyon offers a wide range of distances, from a 5K to a 120K ultramarathon. The course travels through the golden hills of the East Walker Ranch Open Space, featuring singletrack trails..