Mt. Tam Trail Run

Mt. Tam Trail Run

The Mt. Tam Trail Run is scheduled for November 7, 2026 at Mt. Tamalpais State Park in Stinson Beach, California. 2026 registration will open in spring 2026. The event has a capacity of 500 runners and parking is available within the Stinson Beach Day Use Area.

Distances offered include:

• 50K: 30.0 miles, 6,000 feet elevation gain
• 30K: 18.5 miles, 3,900 feet elevation gain
• Half Marathon: 13.0 miles, 2,800 feet elevation gain
• 10K: 6.8 miles, 1,600 feet elevation gain

The course starts at Stinson Beach, climbs to viewpoints on Mt. Tamalpais, and returns via trails in the Headlands back to the beach. Most of the route uses technical dirt singletrack and non-technical fire roads. Hiking poles are permitted. Courses are marked with colored ribbons roughly every 200 meters and with laminated signs or ground markings at complicated sections; blue ribbons indicate wrong way.

Aid stations offer a variety of food and beverages and basic first aid items. This is a cupless event, so runners must carry their own bottle or reusable cup; reusable cups will be available for purchase at the event. Gu energy gel availability is restricted in Golden Gate National Recreation Area sections. All races are chip timed using disposable chips attached to the back of each bib.

All finishers receive a custom medal; 50K finishers additionally receive a pint glass. Age-group and overall awards are presented, and volunteers receive a race T-shirt, food, and credit toward future events. Visit the organization's website for the most recent information.