Trail Running calendar near Mill Valley 2024-2025

We have found 66 Trailruns within 80 miles of Mill Valley. See below where and when you can find the races.

The Race to the Top of Mt Umunhum Vert Trail Challenge is a half marathon race taking place in Almaden Quicksilver Park and Sierra Azul Open Space Preserve in San Jose, CA. The event starts at 8:30 AM with a 6-hour time limit. Participants will race to the top of Mt. Umunhum and transportation back ..

The South Hills Single Track Trail Run - Spring offers various distances ranging from a 5K to a 50K, starting at Calero County Park in San Jose, CA. Participants can expect challenging single track trails, hills, dirt paths, oak trees, exposure, and panoramic vistas along the course. The event inclu..

April 2025

The Santa Teresa King Richard Annual Trail Run is a special event created to honor the organizer's father, Richard Limb, who had a deep connection to Santa Teresa County Park. The event offers a Half Marathon, 10 Mile, 10K, and 5K race options, with a 4-hour time limit. Participants can enjoy the di..

The Lake Sonoma trail run event in Healdsburg, California, on April 12th, 2025, features a 50 Mile race, a Marathon, and a Trail Sisters Half Marathon. The 50 Mile race is an out and back style, while the Marathon course loops around Lake Sonoma, including crossing the iconic lake bridge. The Trail ..

The Napa Valley Endurance Run will take place in Calistoga on Sunday 13 April 2025. You can run between 10 and 50 kilometers.

The Sierra Azul Trail Challenge takes place in San Jose, CA, offering a variety of distances from 5K to 50K. Runners will experience stunning trails in the Sierra Azul Open Space Preserve, with views of Mt. Umunhum. This challenging trail run promises a unique and adventurous experience for particip..