Trail Running calendar near Walnut Creek 2025-2026

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 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, a trail marathon, and shorter races like the 30K, half marathon, 9-mile, 10..

The Mississippi Bar Trail Run, organized by the Fair Oaks Recreation & Park District, is an annual trail running event set in the scenic wetlands and oak-studded hills along the north shore of Lake Natoma. Participants can choose between a 5K and a 10K course, both showcasing the area's unique natur..

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, offers a unique running experience through a historic area once known for shrimp fishing. Participants can choose from three distances: 5K, 10K, and Half Marathon, all featuring scenic trails with views of Mt. Tam and..

The Skyline Ridge Trail Run is an exciting running event taking place in La Honda, California, featuring two challenging distances: a 50K and a 21K. This event is designed for trail running enthusiasts looking to test their endurance and enjoy the scenic beauty of the surrounding landscape. Particip..

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 Rancho Hills Trail Run - Summer is an exciting running event set in the scenic 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 race f..

The Muir Woods Mountain Challenge, formerly known as Table Rock, is an exciting trail running event held in Stinson Beach, California. Participants can choose from three distances: 10K, Half Marathon, and 30K, each featuring challenging terrain and stunning views of the Pacific Ocean and surrounding..

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 set 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 experience a scenic course that winds thr..

The Calero Hills Trail Fest is an exciting trail running event held at Calero County Park in San Jose, CA. Participants can choose from various distances, including a marathon, 30K, half marathon, 10 miler, 10K, and 5K. The course features challenging ascents and descents through scenic landscapes,..

The Folsom 100 is an exhilarating 100-mile ultramarathon that takes place around Folsom Lake, California. Scheduled for August 1, 2025, this challenging race features a point-to-point course with a single out-and-back section. Participants have 34 hours to complete the loop, which includes stunning..

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..

The Mount Madonna Challenge is an annual running event held in Gilroy, California, featuring a half marathon, 10K, and 5K races. Established in 1975, the event promotes trail running and supports local high school athletes through scholarships. The South Valley Running Club initially managed the rac..

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..