Trail Running calendar near San Leandro 2024-2025

The Bay Breeze 2025 event in San Leandro features a scenic 1/2 Marathon, 10K, and 5K race, all starting and finishing at the picturesque San Leandro Marina Park. Participants can enjoy a mostly flat, bayside trail with stunning views of San Francisco and the Bay, making it ideal for both seasoned ru..

The Montara Mountain Trail Run is a scenic 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 backdrop of the beautiful Coasta..

The Sanborn Trail Challenge is a running event held in Sanborn Park, Saratoga, CA, featuring a variety of distances including a Half Marathon, 8 Mile, 4 Mile, Mile, and a Kids Run. The course is predominantly single track trail, characterized by its mountainous terrain and lush mixed evergreen fores..

The Race to the Top of Mt. Umunhum is a half marathon event that takes place within the scenic Almaden Quicksilver Park and Sierra Azul Open Space Preserve in San Jose, CA. Participants will experience a challenging trail course that culminates at the summit of Mt.Umunhum. The event features a point..

The Marin Ultra Challenge is a premier long-distance trail race held in Marin County, featuring a 50-mile and a 50K course. Celebrating its 11th edition, the event showcases some of the most scenic trails in the region, including the Marin Headlands, Mt. Tamalpais, and Muir Woods.Participants can ex..

The Redwood (Spring) Trail Run, scheduled for March 22, 2025, in Oakland, CA, offers a variety of race distances including a 5-mile, Half Marathon, 30K, Marathon, and 50K, along with youth events for different age groups. The scenic course winds through the beautiful Redwood Regional Park, featuring..

The South Hills Single Track Trail Run - Spring takes place at Calero County Park in San Jose, CA, featuring a variety of distances including a 50K, Trail Marathon, Half Marathon, and shorter options down to a Kids Run. Participants can expect a challenging course with scenic single track trails, hi..

The Napa Valley Trail Marathon, Half Marathon, and 10K is an annual running event held in Bothe-Napa Valley State Park, California. Celebrating its 33rd year, the event features a challenging course with scenic views, including hills, streams, and rocky terrain. Limited to 300 participants, it offer..

The Bad Ass Backyard Ultra, organized by Skybreaker Racing in collaboration with Auburn Area Trail Runners, is a unique running event held at Dry Creek Parkway in Rio Linda, California. Participants must complete a 4.16-mile loop within one hour, with new loops starting every hour on the hour. Runne..

The Big Alta is an exciting trail running event hosted by Freetrail and Daybreak Racing in Marin County, California. Participants can choose between two challenging distances: a 50K and a 28K, both featuring scenic single-loop courses that showcase breathtaking views of the San Francisco Bay Area. T..

The Western Pacific 2025 is a running event featuring a Half Marathon, 10K, and 5K, set to take place at the Quarry Lakes Regional Recreation Area in Fremont, California. This scenic course utilizes the historic Western Pacific Trail, known for its flat terrain, making it ideal for participants aimi..

The Lag Bon 10K is a trail running event set in the scenic surroundings of Marin County, California, aimed at raising awareness and funds for the global water crisis. Participants will navigate a moderately challenging course featuring stairs, bridges, and natural terrain, with an elevation gain/los..

The Santa Teresa King Richard Annual Trail Run is a heartfelt event held at the Pueblo Day Use Area in Santa Teresa County Park, San Jose, CA. This race honors Richard Limb, a beloved father and respected teacher, who cherished the park and its trails. Participants can choose from various distances,..

The Golden Gate Headlands Marathon, Half Marathon, and 10K is a scenic running event held annually in the Marin Headlands, California. Celebrating its 40th edition in 2025, participants can enjoy breathtaking views of the San Francisco Bay, Golden Gate Bridge, and the Pacific Ocean while navigating ..

The Diablo Trails Challenge is a running event that offers various distances, including a 50K, half marathon, 10K, and 5K, catering to participants of all skill levels. Scheduled for April 5, 2025, in Walnut Creek, California, the event aims to celebrate and support the conservation efforts of Save ..

The Annadel Half Marathon is a prominent non-profit fundraising event held in Sonoma County, featuring a challenging half marathon, a 10K, and a 5K race. Over the past 14 years, the event has successfully raised funds to enhance the beauty of the local park. The half marathon course is designed for ..

The SPASM Lake Chabot Trail Run is a diverse running event taking place at Lake Chabot Regional Park in Castro Valley, CA. Scheduled for April 12, 2025, it features multiple race distances including an 8K, Half Marathon, 30K, Marathon, and 50K, along with a free Kid's Run for children aged 6 and und..

The Lake Sonoma 50 is a premier running event taking place on April 12, 2025, in Healdsburg, California. It features three main races: the challenging 50-mile course, a marathon that loops around Lake Sonoma, and the Trail Sisters Women's Half Marathon. Participants can expect scenic routes with rol..

The 2025 Romancing the Island Half Marathon & 10K, celebrating its 34th annual event, takes place at Angel Island State Park in Belvedere Tiburon, California. Participants can enjoy a scenic loop trail that offers stunning views of the Golden Gate Bridge, San Francisco, and surrounding areas. The Ha..

The Woodside Crossover is a running event taking place in Woodside, California. Participants can choose to compete in a 50K race, which promises a challenging and scenic experience. The event is set against the backdrop of the beautiful California landscape, making it an appealing choice for both se..