Trail Running calendar near Castro Valley 2024-2025

The Diablo Trails Challenge is a running event taking place on April 5, 2025, at Mount Diablo, featuring multiple race distances: 50K, half marathon, 10K, and 5K. Organized by Brazen Racing, this event caters to runners of all experience levels, from beginners to seasoned ultra-runners. A portion of..

The Annadel Half Marathon, along with its 10K and 5K events, is a non-profit fundraising race held in Sonoma County, California. Over the past 14 years, it has successfully raised funds to enhance the beauty of Annadel State Park. The challenging half marathon course features over 1,500 feet of elev..

The Rodeo Beach Rumble is an exciting running event taking place in the stunning Golden Gate National Recreation Area, near San Francisco. Participants can choose between an 8K and a Half Marathon, both offering breathtaking views of the Bay Area and historical military landmarks along the routes. T..

The Woodside Crossover is a running event taking place in Woodside, California, featuring a challenging 50K race. Set against a scenic backdrop, this event invites participants to test their endurance and enjoy the natural beauty of the area. While specific details about the race's course and amenit..

The 2025 Romancing the Island Half Marathon & 10K is set to take place at Angel Island State Park in Belvedere Tiburon, California. This annual event, now in its 34th year, features a scenic loop trail that offers breathtaking views of the Golden Gate Bridge, San Francisco, and surrounding areas. Pa..

The SPASM Lake Chabot Trail Run is a diverse running event scheduled for April 12, 2025, at Lake Chabot Regional Park in Castro Valley, California. Participants can choose from various distances, including an 8K, Half Marathon, 30K, Marathon, and 50K, along with a free Kid's Run for children aged 6 ..

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 and rugged trails of Robert Louis Stevenson State Park, with the 50k course boasting over 7,500 feet of ..

The Badger Cove Half Marathon, along with 10K and 5K events, will take place on April 19, 2025, at Del Valle Regional Park in Livermore, California. This race, known for its scenic trails and welcoming atmosphere, encourages both runners and walkers to participate. All participants will receive cust..

The Sierra Azul Trail Challenge is a premier running event held in the scenic Sierra Azul Open Space Preserve, near Mt. Umunhum in San Jose, CA. Participants can choose from various distances, including a 50K, Trail Marathon, 20 Mile, Half Marathon, 7 Mile, and 5K, making it suitable for runners of ..

The Horseshoe Lake Trail Run, scheduled for April 20, 2025, offers a variety of running events including a 5-mile race, Half Marathon, 30K, Marathon, and 50K, along with a free Kid's Run for children aged 6 and under. The course is set within the scenic Skyline Ridge, Long Ridge, and Russian Ridge O..

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 No Foolin' Foot Race is an annual running event organized by the Parks and Recreation Foundation of San Carlos, featuring challenging 5k and 10k courses through the scenic Big Canyon and Eaton Parks. Participants can enjoy a Start and Finish Festival at Crestview Park, with professional timing a..

The Miwok 100K is a renowned trail ultramarathon celebrated for its stunning scenery and challenging course, featuring 11,800 feet of elevation gain. Set in the picturesque Stinson Beach area, participants enjoy breathtaking views of San Francisco, the Golden Gate Bridge, and the surrounding natural..

The Hacienda Hills Trail Run - Spring is an exciting trail running event held at Almaden Quicksilver County Park in San Jose, CA. Participants can choose from nine different race distances, including a 50K, Trail Marathon, 30K, Half Marathon, 9 Mile, 10K, 5K, Mile, and a Kids Run, all featuring vary..

The Angwin to Angwish Trail Run is a scenic running event set in the beautiful trails of Napa Valley’s Pacific Union College. Scheduled for May 5, 2024, it features three race distances: a 1 Mile Kids Run, a 10K, and a 26K, catering to runners of all ages and abilities. This cupless event encourages..

The Grizzly Peak Trail Run, scheduled for May 10, 2025, in Berkeley, CA, offers a variety of race distances including a 10K, Half Marathon, 30K, Marathon, and 50K, along with a free Kid's Run for children aged 6 and under. The event starts at Lake Anza and winds through the scenic Tilden Regional Pa..

The Race for Open Space is a multi-course trail running event scheduled for May 10, 2025, in the scenic Palo Corona Regional Park. This event aims to raise funds and awareness for the Big Sur Land Trust, promoting access to parks and open spaces in Monterey County. Participants can choose from vario..

The Stinson Beach/Muir Woods Marathon, Half Marathon, and 7 Mile event is set to take place on May 10, 2025, marking its 35th annual occurrence. Participants will experience a challenging trail run that begins at sea level and ascends into the scenic Muir Woods, following the iconic Dipsea trail. Th..

The Nitro Trail 2025 is an exciting running event taking place at Point Pinole Regional Shoreline Park in San Pablo, California. Participants can choose from three race distances: a half marathon, 10K, and 5K, making it suitable for runners of all levels. The event celebrates the park's transformati..

The Quicksilver Endurance Runs, held in San Jose, CA, features challenging 50K and 100K races on scenic trails through oak forests and meadows, offering stunning views of the Santa Clara Valley and Santa Cruz Mountains. Celebrating its 40th edition, the event supports local non-profits, donating 50%..