Quicksilver Endurance Runs
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Quicksilver Endurance Runs
The 2026 Quicksilver Endurance Runs are scheduled for Saturday, May 9, 2026 and are organized by the Quicksilver Running Club of San Jose. The event takes place on trails associated with Almaden Quicksilver County Park and includes aid stations, course maps, GPX files, and turn-by-turn directions for competitors.
Distances offered:
- 100K - 62 miles, 13,000+ feet elevation gain, 17 hour time limit
- 50K - 30.3 miles, 6,000+ feet elevation gain, cutoff at mile 22
The 100K is USATF sanctioned as part of the Pacific Mountain Ultra-Trail Grand Prix and official finishers of the 100K within the 17 hour limit qualify for the Western States 100 lottery. The event provides swag and a post-race party. Volunteer positions are organized so volunteers can select preferred times and locations and receive additional information through the registration system or email. The organizing club operates as a nonprofit and has donated funds to various organizations from past races. Visit the organization's website for the most recent information.
