Quicksilver Endurance Runs
San Jose, California, United States
May 9, 2026 - Saturday
50k, 100k, Ultra
Race Information
The Quicksilver 50K and 100K races are run on scenic, hilly single track trails and fire roads. You will run through peaceful oak forests, wide-open meadows, and along ridges with spectacular views of the Santa Clara Valley and the Santa Cruz Mountains. Although the course is very challenging, the friendly aid stations and beautiful scenery make Quicksilver an excellent choice for a first trail ultra-marathon. Run for a good cause: 50% of the race proceeds go to non-profits that help kids stay healthy or fund trail advocacy projects.
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Race Facts
Race Size: 100 - 500
Elevation: Lots of Hills
Course Type: Trail
Boston Qualifier: No
Kids Run: No
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