Diablo Trail Run

The Diablo Trail Run, scheduled for September 7, 2025, in Clayton, California, offers a variety of race distances including 4 miles, 10 miles, a half marathon, a marathon, and a 50K, along with a free Kid's Run for children aged 6 and under. The event takes place in the scenic Mount Diablo State Park, featuring both flat and mountainous courses that showcase stunning views of the San Francisco Bay Area. Participants can expect well-stocked aid stations, custom medals for finishers, and awards for top competitors in various categories.

The event promotes a cupless system to minimize waste, encouraging runners to bring their own hydration containers. Visit the organization's website for the most recent information.