Quicksilver Endurance Runs

The Quicksilver Endurance Runs, held in San Jose, CA, features challenging 50K and 100K races on scenic trails through oak forests and meadows, offering stunning views of the Santa Clara Valley and Santa Cruz Mountains. Celebrating its 40th edition, the event supports local non-profits, donating 50% of proceeds to initiatives promoting children's health and trail advocacy. Participants can expect well-stocked aid stations, great swag, and a festive post-race BBQ.

Notably, hiking poles are prohibited on the Sierra Azul section of the 100K for 2025. The races start at the Hacienda Entrance of Almaden Quicksilver County Park. Visit the organization's website for the most recent information.