Trail Running calendar near Brea 2024-2025

Tough Mugu is a challenging trail running event set in Southern California's scenic coastal mountains, offering participants a chance to experience stunning views while competing. The event features a 25k and a 10k race, both supported by fully stocked aid stations. Runners can earn handcrafted fini..

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 held in the San Gabriel Mountains of California. This challenging race features a point-to-point course that spans 100 miles, with elevations ranging from 1,135 to 9,300 feet. Participants navigate steep cl..

The Riley Park Trail Races, set in the scenic Thomas F. Riley Wilderness Park in Coto de Caza, CA, offers a variety of race distances including a 30k, half marathon, 10 miler, 10k, and 5k, making it a family-friendly event suitable for all levels of runners. Participants can enjoy beautiful trails f..

The Bulldog Ultra is a renowned trail running event held in the scenic Santa Monica Mountains, specifically at Malibu Creek State Park. Celebrating its 32nd year, the event features two challenging courses: a 50k ultra and a 25k trail run, both offering breathtaking views and demanding terrain. Part..

That's No Moon Ultras is an exciting running event taking place in Silverado, California, featuring three challenging distances: 50 Miler, 50K, and 30K. Set against the stunning backdrop of the Cleveland National Forest and Santa Ana Mountains, participants can expect breathtaking views and sunny we..

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 HOKA Kodiak Ultra Marathons by UTMB is a thrilling running event set in the picturesque mountain town of Big Bear Lake, California. This two-day festival features a variety of race distances, including 100M, 100K, 50K, 21K, and 10K, allowing participants to experience diverse landscapes and clim..

The Cahuilla Rez Ultra is a unique running event held on the Cahuilla Indian Reservation in Anza, California, featuring various race options including a 100-mile, 24-hour, 12-hour, 6-hour, and a half marathon. This event serves as a fundraiser for the tribe's Youth and Family Programming, promoting ..

The SPACEROCK Trail Race, set for October 18, 2025, takes place at the iconic Vasquez Rocks Natural Park in Agua Dulce, 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 stunnin..

The Machete Trail Madness 100 Miler is a challenging ultramarathon event held in Lake Perris, California, featuring a 100-mile, 50-mile, and 10-mile race. Scheduled for October 31, 2025, this event celebrates Dia De Los Muertos with a supportive community atmosphere. Runners will tackle a tough 10-m..

The Catalina Island Half-Marathon & 10K is an exciting running event set against the stunning backdrop of Catalina Island, California. Scheduled for November 8, 2025, this race offers participants the chance to experience breathtaking views and unique wildlife while running. The event features a hal..

Into The Wild Fremont Canyon is part of a series of trail running events organized by Into the Wild OC Trail Runs. Scheduled for December 6, 2025, this 28k race takes participants through the scenic Fremont Canyon, showcasing the natural beauty of the area. The event emphasizes the thrill of trail r..