Trail Running calendar near Simi Valley 2025-2026

Coyote Two Moon is an exciting trail running event set in the stunning mountains of Ojai, California, taking place from May 2 to May 4, 2025. The event features a variety of race distances, including 100M, 100K, 50K, 30K, and 10K, catering to runners of all levels. Participants can enjoy scenic rout..

The John Wayne Grit Series - Newport Coast is a running event that features 50K, 25K, and 5K races set against the stunning backdrop of Crystal Cove State Park in Laguna Beach, California. Participants navigate hill climbs and enjoy ocean views along dirt roads and single-track trails. The event sup..

The Forever Brave Half Marathon in Valencia is a vibrant running event scheduled for May 25, 2025. Participants can choose from various distances, including a 5k, 10k, 15k, and half marathon, all set on an open course designed for a fun and relaxed experience. The race features out-and-back loops wi..

The Malibu Canyon Trail Races, organized by Keira Henninger, will take place on June 7, 2025, in the scenic coastal Santa Monica Mountains of Malibu, California. This challenging event features multiple race distances, including 100K, 50-mile, 50K, and 30K, allowing participants to experience the be..

The Griffith Park Trail Marathon Relay & 8K is a celebrated running event in Los Angeles, marking its 10th anniversary. This unique race offers participants the chance to challenge themselves on scenic trails while enjoying the camaraderie of friends and fellow runners. The event features both a mar..

The Orange Curtain Endurance Run is a premier running event taking place on June 20-21, 2025, in Cerritos, California. Participants can choose from various distances, including 100K, 50K, marathon, 30K, 10K, and 24-hour races. The course features a flat, out-and-back design along a bike path, making..

The Red Rock Rumble is an exciting running event taking place in the stunning Red Rock Canyon of Topanga, CA. This event features a challenging 10k race, a non-timed Hiker's Delight, and kids' races of 1.5 miles and 1/2 mile. Participants can enjoy breathtaking views, steep climbs, and a vibrant atm..

The Whiting Ranch Trail Races, scheduled for June 28, 2025, in Trabuco Canyon, CA, features three race distances: a 10K, a half marathon, and a 30K. Participants will enjoy scenic trails in the foothills of the Santa Ana Mountains, with well-marked routes and ample support throughout the event. The ..

The Mt. Baldy 5000 is a challenging 5K mountain race taking place at the Mt. Baldy Resort, designed for runners of all skill levels.The course is primarily uphill, offering stunning views and a unique running experience. Following the race, participants can enjoy a BBQ dinner, live music, and drinks..

The Harding Hustle is an exciting trail running event set in the scenic Santa Ana Mountains of Orange County, California. Scheduled for July 19, 2025, it features three challenging distances: 50K, 30K, and 15K, all along the Harding Truck Trail. Participants can expect breathtaking views, steep clim..

Tough Mugu is a challenging trail running event set in Southern California's scenic coastal mountains, offering participants a chance to experience breathtaking views. The event features a 25k and a 10k race, both of which are part of the Bulldog Challenge Series. Runners can enjoy a fully-supported..

The SoCal Summer 6K/12K, organized by Pasadena Running Company, is a vibrant trail running event set in Pasadena's scenic Lower Arroyo Park. Participants can choose between two distances: a 6K and a 12K trail run, both featuring mixed-use and single-track trails. The event includes early packet pick..

The Angeles Crest 100 Mile Endurance Run, established in 1986, is a prestigious ultramarathon that challenges participants to traverse 100 miles through the scenic San Gabriel Mountains. This point-to-point race features significant elevation changes, ranging from 1,135 to 9,300 feet, and includes s..

The Bulldog Ultra is Southern California's oldest 50k trail race, celebrating its 32nd year in the scenic Santa Monica Mountains. Scheduled for August 16, 2025, participants can choose between a challenging 25k or 50k course, both offering stunning views and steep climbs. The event features a $4,000..

That's No Moon Ultras is a challenging trail running event set in the scenic Cleveland National Forest and Santa Ana Mountains of Southern California. Participants can choose from three distances: 50 miles, 50K, and 30K, all featuring significant elevation gains and technical terrain. The race empha..

The Angeles National Forest Trail Race, celebrating its 20th anniversary, offers both 25K and 50K races on September 27, 2025, starting and finishing at the iconic Mt. Wilson Observatory. Set in the scenic San Gabriel Mountains, the 25K features a challenging 3,500 feet of elevation gain, while the ..

The SPACEROCK Trail Race, scheduled for October 18, 2025, takes place at the iconic Vasquez Rocks Natural Park in Southern California. This event offers a variety of race distances, including a Half Marathon+, 15K, 10K, and 5K, catering to runners of all skill levels. Participants can enjoy the stun..

The Pasadena Trail Half Marathon is a premier running event organized by Pasadena Running Company, featuring challenging routes that showcase the beautiful trails of Pasadena. Scheduled for October 19, 2025, this event includes three distance options: a Half Marathon, 10K, and 5K, catering to runner..

The Twilight's Last Gleaming Cross Country Challenge will take place in Ventura on Saturday 25 October 2025.

The Catalina Island Half-Marathon & 10K is a premier trail running event set to take place on November 8, 2025, in Avalon, California. Participants will experience a challenging course that includes steep climbs and breathtaking views of the Pacific Ocean, starting near the historic Wrigley Mansion...