Trail Running Calendar California 2024-2025

We have found 233 Trailruns in California. Check below where and when you can find the races.

The Porterville 5K/10K Trail Run, organized by the Porterville Military Academy, is set to take place on April 12, 2025. This community event features a 5K and 10K run/walk on a dirt path course, along with a children's 1/4 mile run/walk. Participants will receive a custom race t-shirt, finisher med..

The Machete Trail Madness 100K is a challenging ultramarathon event taking place on April 12, 2025, at Lake Perris, California. Participants can choose from three distances: 100K, 50K, and 10K, with a course featuring a 10-mile loop and a total elevation gain of 2,300 feet per lap. The event emphasi..

The Oriflamme 50K is a scenic trail running event set in the beautiful Anza Borrego Desert State Park. This out-and-back course begins at the Sunrise Trailhead and features a diverse terrain, including single track along the Pacific Crest Trail and a significant descent into the desert. Runners will..

The Napa Valley Endurance Run is a challenging trail running event held in Calistoga, California, featuring four race distances: 50k, 35k, half-marathon, and 10k. Participants traverse the scenic trails of Robert Louis Stevenson State Park, with the 50k route noted for its steep elevation gain of ov..

UTMB Index

The Mendocino Coast 50K is an exhilarating trail running event set in the stunning landscapes of Northern California. Participants will experience a diverse course that includes scenic views of rivers, the ocean, majestic redwoods, and beautiful waterfalls. The race culminates along the picturesque ..

The Sierra Azul Trail Challenge is an exciting running event taking place in the scenic Sierra Azul Open Space Preserve, near San Jose, CA. Participants can choose from various distances, including a 50K, Trail Marathon, 20 Mile, Half Marathon, 7 Mile, and 5K. This challenging race offers a unique o..

The Badger Cove Half Marathon, along with 10K and 5K events, will take place on April 19, 2025, at Lake Del Valle Regional Park in Livermore, California. This trail race welcomes both runners and walkers, offering a scenic experience in the emerald hills. Participants can expect custom finisher meda..

The Horseshoe Lake Trail Run is an exciting running event taking place at the Skyline Ridge Open Space Preserve in La Honda, California. Scheduled for April 20, 2025, the event features multiple race distances, including a 5-mile run, Half Marathon, 30K, Marathon, and 50K, along with a free Kid's Ru..

The Merced River Canyon Run is a popular running event taking place in Briceburg, California. Participants can choose between two race options: the McCabe Flat flat out, a 5-mile course known for its flat terrain, and the Burma Grade hill climb, a challenging 9-mile race that ascends the steep Burma..

The Canyons Endurance Runs by UTMB® is a premier trail running event held in Auburn, California, known as the "Endurance Capital of the World™." Scheduled for April 25-26, 2025, the event features multiple race distances, including a new 100-mile course, alongside 100K, 50K, and 25K options. Partici..

UTMB Index

The Saddleback Marathon is a challenging running event held in Black Star Canyon, Silverado, CA, featuring a full marathon, half marathon, and 10K race. Participants can expect a demanding course with significant elevation gains, particularly for the marathon, which includes approximately 4,500 feet..

The Brown’s Ravine Half & Full Marathon is an exciting trail running event taking place in Folsom, California, featuring a scenic course that is 95% single track and 5% dirt road. Runners will enjoy beautiful views of Folsom Lake, oak trees, and the Sierra Mountains while navigating gentle rolling h..

The Badwater Salton Sea is an ultra running event set to take place on April 26-27, 2025, in Borrego Springs, California. This challenging race spans 81 miles from Salton City, which is below sea level, to Palomar Mountain, reaching an elevation of 5,500 feet. Participants compete in teams of two or..

The Mt. Tam Wild Boar Half Marathon and 10K is an annual running event held at Mt. Tamalpais State Park in Mill Valley, California.Celebrating its 37th year in 2025, the race features a scenic coastal ridge trail that offers stunning views of the Pacific Ocean and surrounding landscapes. Participant..

The Las Virgenes Canyon Trail Races, taking place on April 26, 2025, in Southern California, offers a variety of distances including 6K, 12K, 30K, 54K, and 84K. This event, formerly known as the Ahmanson Ranch Trail Races, is organized by Anytime Runners, LLC, and promises a scenic and challenging e..

The Ramona Wine Country 5K is an exciting running event set in the scenic BackCountry Gardens of Ramona, California. Participants can choose between a challenging 5K course featuring trails, hills, and natural obstacles, or a single loop option for a more relaxed experience. The event also includes ..

The No Foolin' Foot Race, organized by the Parks and Recreation Foundation of San Carlos, invites participants to explore the scenic trails of Big Canyon and Eaton Parks. This annual event features challenging 5k and 10k courses, with significant elevation gains, as well as a 1-mile kids' course for..

The Aut2Run for Autism is a running event scheduled for April 27, 2025, featuring multiple race options including a 15K, 10K, 5K, 1-Mile, Fun-K, and a Virtual Race. This annual event supports the Autism Society of Ventura County, with all proceeds directed towards improving the lives of individuals ..

May 2025

Coyote Two Moon is an exciting trail running event set in the stunning mountains of Ojai, California, featuring a variety of race distances including 100M, 100K, 50K, 30K, and 10K. Scheduled for May 2-4, 2025, the event offers challenging courses with significant elevation gains, catering to both se..

The Folsom Lake Trail Run, scheduled for May 3, 2025, offers a scenic running experience along the picturesque lakeside trails of Folsom Lake, California. Participants can choose from four distances: 10K, Half Marathon, 35K, and 50K, catering to various skill levels. The course features an out-and-b..