Logo

Marin Ultra Challenge

Sausalito, United States • 8 Mar 2025

The Marin Ultra Challenge is a premier long-distance trail race held in Marin County, California, featuring 50-mile and 50K events. Celebrating its 11th edition in 2024, the race showcases some of the region's most stunning trails, including the Marin Headlands, Mt. Tamalpais, and Muir Woods.

Participants can expect challenging terrain with significant elevation gains—approximately 11,000 feet for the 50-mile race. The event emphasizes environmental responsibility by being cupless, requiring runners to carry their own hydration solutions. With a capacity of 450 runners, the Marin Ultra Challenge promises a memorable experience for trail running enthusiasts. Visit the organization's website for the most recent information.

United States California Sausalito

Race information

Website
50 mi
10550 m+
50 Mile
50 km
6000 m+
50k
Visit the organization's website for the most recent information.
Trail runs nearby

Brazen New Year's Eve

Castro Valley - 25 mi from Sausalito

The Brazen New Year's Eve event offers participants the chance to run a half marathon, 10K, or 5K at Lake Chabot in Castro Valley, California. This event is designed for runners of all levels, including hikers and walkers, making it a perfect way to close out the year with friends and fitness. Parti..

Brazen New Year's Day

Castro Valley - 25 mi from Sausalito

The Brazen New Year's Day event offers a scenic and invigorating start to the new year with races at Lake Chabot in Castro Valley. Participants can choose from a half marathon, 10K, or 5K, making it a family-friendly occasion. The event encourages runners to kick off their resolutions and enjoy the ..

China Camp Challenge

San Rafael - 8 mi from Sausalito

The China Camp Challenge is a running event held at China Camp State Park in San Rafael, California. Participants can choose from three distances: a 5K, 10K, or half marathon, all set against the backdrop of scenic trails and views of the Bay Area. The park offers a natural environment with a canopy..

Golden Gate Trail Run

Sausalito

...

The Golden Gate Trail Run is an exciting running event taking place in Sausalito, California, featuring a variety of race distances including an 8K, Half Marathon, 30K, Marathon, and 50K, along with a free Kid's Run for children aged 6 and under. Participants can enjoy stunning views of the Pacific ..

Go Wild Lime Ridge 2 Hour

Walnut Creek - 23 mi from Sausalito

The Go Wild! Lime Ridge 2 Hour event invites participants to explore the scenic Lime Ridge Open Space in Walnut Creek, CA. Teams of 1 to 5 will navigate using a custom map to locate up to 20 checkpoints within a two-hour timeframe. This adventure combines trail running and wilderness scrambling amid..

Bay Breeze - San Leandro

San Leandro - 20 mi from Sausalito

The Bay Breeze event, taking place at San Leandro Marina Park, features a scenic half marathon, 10K, and 5K run along the picturesque San Francisco Bay. This race is designed for all levels of runners and walkers, offering a mostly flat course that is ideal for setting personal records. Participants..