Trail Running calendar near San Leandro 2024-2025

The Lake Chabot Trail Challenge is an annual running event featuring a Half Marathon and a 5K run, taking place in Castro Valley, California. The 2025 edition will celebrate its 41st year, offering participants a scenic and challenging course that includes dirt fire roads and beautiful views of Lake..

The China Camp Trail Run is an exciting running event held at China Camp State Park in San Rafael, CA, featuring 5K, 10K, and Half Marathon distances. Participants can enjoy a scenic course that includes twisting single-track trails, forested areas, and stunning views of Mt. Tam and San Pablo Bay.Th..

The SF Half Day is a unique running event taking place in San Francisco, featuring various race formats including 12-hour, 6-hour, and 3-hour options for both solo participants and teams. The course is a scenic one-mile loop around Crissy Field, offering stunning views of the Golden Gate Bridge and ..

The Mt. Umunhum Ultras is an exhilarating trail running event set in the scenic landscapes of San Jose, CA. Participants can choose from various distances, including a challenging 52-mile ultra, a 50K, and a trail marathon, all featuring over 15,000 feet of elevation gain.The course winds through en..

The Golden State Trail Run, hosted by Inside Trail Racing, is a premier summer event taking place at Fort Ord National Monument in Monterey, CA. Participants can choose from four distances: 10K, Half Marathon, 35K, and 50K, each featuring unique trails that showcase the area's diverse flora and faun..

The Rancho Hills Trail Run - Summer is an exciting running event set in the picturesque Rancho Cañada del Oro Open Space Preserve in Morgan Hill, CA. Participants can choose from various distances, including a 50K, Trail Marathon, 30K, Half Marathon, 10 Mile, 8 Miler, 10K, and 5K. This challenging c..

The Dirty Dozen Endurance Run is an exciting running event taking place at Point Pinole Regional Shoreline, Richmond, CA. Participants can choose from 12-hour, 6-hour, or 3-hour races, either individually or as part of a team. The course features a scenic 3.37-mile loop primarily on dirt fire trails..

The Calero Hills Trail Fest, held at Calero County Park in San Jose, CA, offers a variety of trail running distances including a marathon, 30K, half marathon, 10 miler, 10K, and 5K. Participants can expect a challenging course featuring single track trails, steep ascents and descents, and scenic vie..

The Skyline 50K Endurance Run is one of California's oldest and most celebrated 50K races, taking place annually in August at Lake Chabot Marina in Castro Valley. This event is designed for both first-time ultrarunners and seasoned veterans, featuring a scenic course that loops through the East Bay ..

The Redwood (Summer) Trail Run is an exciting running event taking place in Oakland, CA, featuring a variety of race distances including a 5-mile run, Half Marathon, 30K, Marathon, and 50K, along with a free Kid's Run for children aged 6 and younger. The event showcases the stunning trails of Redwoo..

The Almaden Hills Trail Run takes place in the scenic Almaden Quicksilver Park, featuring a variety of challenging distances including 5K, 10K, 8M, Half Marathon, 30K, Trail Marathon, and 50K. The course consists of 60% dirt roads and 40% single track, offering stunning views and a hilly terrain tha..

The Tamalpa Headlands 50K is a challenging ultramarathon set in the scenic Marin County, California, featuring a single-loop course that showcases iconic trails such as Coastal, Miwok, and Dipsea. Established in 1998, this event offers approximately 6,500 feet of elevation gain, combining fast fire ..

The Pacifica Summit Run is an exciting running event taking place at San Pedro Valley State Park in Pacifica, CA. Participants can choose between a 10K and a Half Marathon, both offering stunning views of the Pacific Ocean coastline and challenging switchbacks. This event is designed for runners of ..

The Dick Collins Firetrails 50 will take place in Castro Valley on Saturday 27 September 2025.

The Diablo Summit Stomp is an exciting trail running event featuring multiple distances: 30K, half marathon, 10K, and 5K. Set in the scenic Mount Diablo area, the event is designed to accommodate both novice and experienced runners, with welcoming trails for walkers and hikers as well. Participants ..

The Quarry Turkey Half Marathon is a festive running event taking place at Quarry Lakes Regional Recreation Area in Fremont, California. Scheduled for November 29, 2025, it features a half marathon, 10K, 5K, and a free Little Turkeys Run for children. Participants are encouraged to bring canned good..

The Summit Rock Half Marathon is an exciting running event taking place in the scenic Sanborn County Park, nestled in the Santa Cruz Mountains near Silicon Valley. Participants can choose from three distances: a half marathon, 10K, or 5K, all featuring beautiful single-track trails under the majesti..