Quicksilver Trail Challenge

San Jose, United States • 25 Oct 2025

The Quicksilver Trail Challenge, hosted by the Quicksilver Running Club in San Jose, California, is an annual trail running event held in late summer or early fall at Almaden Quicksilver County Park. It features a half marathon, a 10K race, and a free one-mile kids' fun run. The courses traverse scenic single-track trails and fire roads through historic mining territory, oak forests, and open meadows, offering views of the Santa Clara Valley and Santa Cruz Mountains.

The event welcomes both beginner and experienced trail runners, providing a challenging yet beautiful running experience. All finishers receive commemorative medals and swag, with prizes for top finishers. Proceeds support local charities. Visit the organization's website for the most recent information.

Race information

21 km
Half Marathon
10 km
10k
Kids 1 Mile Fun Run
Visit the organization's website for the most recent information.
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