Trail Running calendar near Santa Rosa 2025-2026

The Napa Wilderness Trail Runs, organized by Bay Trailrunners, takes place at Skyline Wilderness Park in Napa, California. This event caters to all levels of trail runners, offering a variety of distances including a 40-mile ultra marathon, 50K, 30K, half marathon, and 10K. The courses feature sceni..

The Pacifica Foothills Trail Run, scheduled for May 17, 2025, takes place in San Pedro Valley Park, Pacifica, CA, offering a scenic coastal mountain environment. Participants can choose from three distances: 10K, Half Marathon, and 30K, all set on the park's dirt trails. The event features a profess..

The Sonoma Coast Trail Runs, organized by SkyBreaker Racing, is a scenic running event set in the stunning Sonoma Coast State Park in Northern California. Participants can choose from various distances, including a 50K, Trail Marathon, 30K, and Half Marathon, all featuring breathtaking views of the..

The Wildcat Half Marathon, scheduled for May 31, 2025, in El Sobrante, California, features a scenic trail race that includes a half marathon, 10K, and 5K. Participants can enjoy breathtaking 360-degree views of the Bay Area while running through the Wildcat Canyon Regional Park. The event is open t..

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 views of Lake Chabot, Mt. Diablo, and the San Francisco Bay.The Half Marathon course is a h..

The Cinderella Trail Run is an exciting running event taking place in Oakland, California, featuring a variety of race distances including a Half Marathon, Marathon, 8K, 30K, 50K, and a free Kid's Run for children aged 6 and under. Set in the scenic Joaquin Miller and Redwood Regional parks, partici..

The Mississippi Bar Trail Run is an annual event taking place in Fair Oaks, CA, featuring both 5K and 10K trail runs. Scheduled for June 7, 2025, the race offers participants a scenic route through wetlands and oak woodlands along the north shore of Lake Natoma. This year, a 10K option has been adde..

The SF Half Day is a unique running event taking place in San Francisco, featuring various race formats including 3-hour, 6-hour, and 12-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 China Camp Trail Run, taking place at China Camp State Park in San Rafael, CA, features three race distances: 5K, 10K, and Half Marathon. Participants will enjoy scenic views of Mt. Tam, San Pablo Bay, and San Francisco Bay while navigating through twisting single-track trails and lush forests.T..

Dirt Circus - San Francisco is a vibrant community running event scheduled for June 15, 2025. Organized by UltraSignup, this festival celebrates local races and the running community. Participants can enjoy a casual group run, with options for different paces, followed by a pancake breakfast and an..

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 a ferry ride from Tiburon. The event combines..

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 a scenic trail run, com..

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 Muir Woods Trail Run, taking place in Stinson Beach, CA, offers a thrilling experience for both novice and experienced mountain runners. Participants can choose from three distances: 10K, Half Marathon, and 30K, each featuring challenging terrain and stunning views of the Pacific Ocean and surro..

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 Rodeo Valley Trail Run, taking place in the scenic Marin Headlands, offers a variety of race distances including 8K, Half Marathon, 30K, and 50K. Participants will enjoy breathtaking views of the Pacific Ocean, San Francisco, and the Golden Gate Bridge while navigating challenging terrain that f..

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 novice and experienced ultrarunners, featuring a scenic course that loops through the East Bay Regional P..

Bear Creek Run is a trail running event taking place in Lafayette, California, on August 9, 2025. Participants can choose from three race distances: a half marathon, 10K, and 5K, all set in a scenic, hilly course through Briones Regional Park. The event welcomes hikers and walkers, ensuring an inclu..

The Redwood (Summer) Trail Run is an exciting running event taking place in Oakland, California, 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 under. The course winds through the scenic Redwood..

The Tamalpa Headlands 50K is a challenging ultramarathon set in the stunning Marin County, California, featuring iconic trails such as Coastal, Miwok, and Dipsea. Established in 1998 and presented by the Tamalpa Runners, this single-loop race offers approximately 6,500 feet of elevation gain, combin..