Trail Running calendar near Cupertino 2025-2026

Trailquake is an exciting running event taking place in Saratoga, California, featuring a half marathon, 10K, and 5K race. Set against the stunning backdrop of redwoods and pines, participants can enjoy beautiful trails while engaging in a challenging yet rewarding experience. The event welcomes run..

The Napa Wilderness Trail Runs, hosted by Bay Trailrunners, takes place at Skyline Wilderness Park and offers a variety of trail running distances, including 40 miles, 50K, 30K, half marathon, and 10K. This event caters to all levels of runners, from seasoned ultra-marathoners to beginners. Particip..

Run for Amma is an annual charity running event held in Los Gatos, California, aimed at raising funds and awareness for cancer research. Participants can choose from three race distances: 50K, 30K, and 10K, with all proceeds benefiting the UCSF Julia Carnevale Lab. The event emphasizes community inv..

The Calero Trail Run - Spring is an exciting trail running event held at Calero County Park in San Jose, CA. Participants can choose from various distances, including a 50K, marathon, 25K, half marathon, 15K, 10K, 5K, and a kids run. The course features scenic single tracks, hills, and dirt paths, m..

The Wildcat Half Marathon, scheduled for May 31, 2025, in El Sobrante, California, features a scenic trail race with options for a half marathon, 10K, and 5K. Participants can enjoy breathtaking 360-degree views of the Bay Area, including landmarks like the Golden Gate Bridge and Alcatraz. The event..

The 2025 Lake Chabot Trail Challenge features a Half Marathon and a 5K run, taking place in Castro Valley, California. This annual event, now in its 41st year, is popular among trail runners and offers scenic courses with views of Lake Chabot, Mt. Diablo, and the San Francisco Bay.The Half Marathon..

The Cinderella Trail Run is an exciting running event scheduled for June 1, 2025, in Oakland, 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 and under. The scenic course winds through..

The Toro Park Trail Run offers a scenic running experience in Salinas, California, featuring a variety of race distances including a Full Marathon, Half Marathon, and 10K. Set against the backdrop of the iconic Bay Area landscape, participants will navigate through rolling golden hills and shaded oa..

The Mt Umunhum Ultras is an exciting trail running event set in the scenic Santa Clara Valley and Sierra Azul Open Space Preserve. Participants can choose from various distances, including a challenging 52-mile ultra, a 50K, and shorter races like a 5K and 10K. The course features over 15,000 feet o..

The China Camp Trail Run, taking place at China Camp State Park in San Rafael, CA, offers a unique running experience through scenic trails that showcase views of Mt. Tam, San Pablo Bay, and San Francisco Bay. Participants can choose from three distances: 5K, 10K, and Half Marathon, each featuring a..

The SF Half Day is a unique running event taking place in San Francisco, featuring various race durations 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 an..

Dirt Circus - San Francisco is a vibrant community running event set to take place in June 2025. Organized by UltraSignup, this festival celebrates local races and the running community, featuring a social run, food, and a raffle with exciting prizes. Participants can enjoy a casual group run with o..

The Angel Island Half Marathon is a unique running event set in the picturesque Angel Island State Park, offering stunning 360-degree views of the San Francisco Bay. Participants can choose between a half marathon and a 5-mile race, both of which include ferry transportation to the island. The event..

The Golden State Trail Run, hosted by Inside Trail Racing, is a premier summer event taking place at Fort Ord National Monument in Marina, CA, on June 21, 2025. Participants can choose from four distances: 10K, Half Marathon, 35K, and 50K, each featuring unique trails that showcase the area's divers..

The Rock the Loch Half Marathon is a running event taking place from June 27 to June 30, 2025, at Lake Chabot Regional Park in Castro Valley, CA. Participants can choose to run in person or virtually, with options for a half marathon, 10K, and 5K distances. The event promises scenic trails, quality..

The Bay 2 Bankers 10K is an exciting running event set in San Francisco, featuring a unique mystery theme that celebrates the city's classic vibes. Participants will start near the iconic Ferry Building and navigate through various neighborhoods using a custom map. Teams of 1 to 5 will answer multip..

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 r..

The Dirty Dozen Run, organized by Brazen Racing, is a unique endurance event taking place at Point Pinole Regional Shoreline. Scheduled for July 12, 2025, participants can choose to run for 12, 6, or 3 hours, either solo or in teams of two or three. The race features a scenic 3.37-mile loop primaril..

The San Lorenzo River Trail Run is an exciting running event taking place in Santa Cruz, California, featuring multiple race distances including a 10K, Half Marathon, 30K, Marathon, and 50K, along with a free Kid's Run for children aged 6 and under. Participants will enjoy a scenic course that winds..

The Muir Woods Trail Run, taking place on July 12, 2025, in Stinson Beach, CA, offers a challenging experience for both novice and experienced mountain runners. Participants can choose from three distances: 10K, Half Marathon, and 30K. The course features steep climbs, breathtaking views of Stinson..