Trail Running Calendar California 2025-2026

The Lost Trail Half Marathon and 5K, organized by TBF Racing, takes place at Granite Beach, Folsom Lake SRA. This scenic event features well-marked courses with beautiful lake views and wildflowers, supported by multiple aid stations. Participants can enjoy custom finisher medals and soft-cotton rac..

The Montara Mountain Trail Run is an exciting running event taking place in Pacifica, California, featuring a variety of race distances including a 10K, Half Marathon, 20-mile, Marathon, and 50K, along with a free Kid's Run for children aged 6 and under. Set against the stunning backdrop of Montara..

The Sycamore Canyon event offers a variety of trail running options, including a 100K (solo or relay), 50K (solo or relay), and a Half Marathon. Set in the scenic Goodman Ranch Sycamore Canyon Preserve near San Diego, participants will navigate a loop course through beautiful landscapes. The event e..

The Sean O'Brien event, taking place in Calabasas, CA, offers a range of challenging trail races including 100K, 50 Mile, 50K, Marathon (26.2 miles), and 30K on January 25, 2025. This event is notable as the 100K serves as a qualifier for the prestigious Western States 100. Participants can expect s..

The Salmon Falls 50K Endurance Run is a challenging trail race set in the scenic foothills of Sacramento, California. This ultra-distance event features a point-to-point course that begins at the Magnolia Ranch Trail Head near Coloma and concludes at Folsom Lake, showcasing the beautiful trails of t..

The Fresh Tracks 5K Snowshoe Walk & Race is an exciting event taking place at Camp Richardson Resort in South Lake Tahoe, CA, on February 23, 2025. Participants can enjoy a scenic 5K course through groomed trails, with options for both competitive racing and a familiarization walk for those new to s..

The Mt. Hollywood 12K Trail Run Hike is an exciting outdoor event taking place in Griffith Park, Los Angeles, featuring multiple race options including a 12K trail run, an 8K run, a 5K challenge, and a kid's 2.2K run. Participants can enjoy stunning views of the Hollywood Sign, Griffith Observatory,..

The Sanborn Trail Challenge is an exciting running event taking place in Sanborn County Park, Saratoga, CA. This challenging race features a variety of distances, including a Half Marathon, 8 Mile, 4 Mile, and a Kids Run, all set against a backdrop of lush, mountainous terrain. The course is predomi..

The Field N Dale 6K & 12K Trail Run at the Panorama Vista Preserve offers participants a unique running experience in Bakersfield, CA. This event features two courses: a flat and fast 6K trail run/walk along the Kern River, and a challenging 12K trail run that includes climbs and single-track trails..

The Way Too Cool 50K & 10 Mile Endurance Runs is a celebrated trail running event taking place in Cool, California. This iconic race, now in its 35th year, features a challenging 50K course known for its scenic beauty, including rolling hills and creek crossings. A new addition is the 10-mile trail..

The Sanger Blossom Trail Run is a vibrant running event scheduled for March 1, 2025, in Sanger, California. Participants can choose from various events, including a 10K run, a non-competitive 10K walk, a 2-mile run/walk, and several kids' races ranging from 1/8 mile to 1/2 mile. The course features..

The San Joaquin River Trail Half Marathon & 10K is set to take place on March 1, 2025, in the scenic San Joaquin River Gorge Management Area, Auberry, CA. This challenging event features a half marathon course with approximately 2,500 feet of elevation gain, primarily on single-track trails. Partici..

The Singletrack Stampede is an exciting cross-country running event featuring 10K and 22K distances, designed for runners of all skill levels. Set in the scenic Las Virgenes Canyon Valley, participants navigate through twists, turns, and challenging switchbacks along the Millennium Loop Trail. The e..

The Catalina Island Marathon, taking place on March 8, 2025, is a celebrated running event featuring a marathon, 10K, and 5K races. Known as California's oldest trail marathon, it offers participants stunning views and breathtaking trails across Catalina Island. The event promotes sustainability wit..

The Marin Ultra Challenge is a premier long-distance trail race held in Marin County, featuring a 50-mile and a 50K course. Scheduled for March 8, 2025, the event showcases some of the most scenic trails in the region, including the Marin Headlands, Mt. Tamalpais, and Muir Woods.Participants can exp..

The Race to the Top of Mt. Umunhum Vert Trail Challenge is a half marathon event taking place in San Jose, California, within the scenic Almaden Quicksilver Park and Sierra Azul Open Space Preserve. Participants will experience a challenging point-to-point course, with a six-hour time limit to compl..

The Coast to Crest Trail Race is an annual running event featuring 10K and 5K courses, set to take place in Del Mar, California. Celebrating its 10th year, the race is known for its flat and fast terrain, making it ideal for runners aiming for personal records. The courses offer stunning views of th..

The Griffith Park Trail Marathon is a celebrated running event taking place in Los Angeles, California, featuring multiple race distances including a 50K, marathon, 30K, half marathon, and 10K. This year marks the 15th anniversary of the "Spring Edition," promising an exciting experience for partici..

The OC Trail Runners Group Run is a free, social, and non-competitive event taking place at El Moro and Laguna Coast Wilderness Park in Newport Beach. Participants can enjoy a scenic 7.5-mile trail run with approximately 1100 feet of vertical gain, featuring various routes each time. The event empha..

The Tesoro Viejo Spring Classic Half Marathon, scheduled for March 9, 2025, in Madera, CA, features a scenic course through picturesque trails and meadows, ideal for runners of all levels. Participants can choose from a half marathon, 10k run, 5k run/walk, or a virtual run. The event emphasizes comm..