2026 Dirt Fondo

The 14th Anniversary of MCBC’s Dirt Fondo returns for a day of off-road adventure on Saturday, August 15, 2026. 300 lucky riders will embark on a 45-mile journey from the Golden Gate to Mt. Tam and back. There is amazing scenery along the whole route and a good mix of trails, fire roads, and paved paths! Friendly faces will greet you at 4 rest stops on the way out and back. As always, there will be world-class support on course, including marshals, mechanics, and SAG.

The Dirt Fondo culminates with a post-ride party among the horses at the Presidio Riding Club Stables in the Marin headlands.

We’ve tweaked the traditional route and will offer a bonus lap for those looking to make it 49 miles! And as always, we will offer routes of 32, 23, and 10 miles for those looking for a bit less challenge.

All proceeds support MCBC’s Off-road program. If you have any questions, please contact Sandy Allen.

We can’t wait to see you and celebrate 12 years of off-road adventure at the Dirt Fondo!

REGISTRATION for the 2026 Dirt Fondo will open in April 2026! Choose between a general entry or a sign-up as a Trail Boss, which includes a Dirt Fondo t-shirt and other commemorative swag!