The Quicksilver Trail Challenge includes 3 races: a Half Marathon, a 10k, and a one mile free Kids Race, run on scenic, single track trails and fire roads in the historic Quicksilver mining territory of Almaden Quicksilver County Park. Travel through peaceful oak forests and open meadows, with great views of the Santa Clara Valley and the Santa Cruz Mountains. Although the course is very challenging, the beautiful scenery will make the miles go by quickly. If you’ve only run roads before, the Quicksilver Challenge is a wonderful introduction to trail running. All entrants will receive a swag bag, all finishers will receive a commemorative medal, and the top three overall and top in each age group will receive a prize as well. Proceeds from this event will again be donated to local charities. The one mile kids race will be free. Visit the Quicksilver Trail Challenge event page for complete details. Join our event on Facebook and stay informed of race updates.
As always a huge thank you to our sponsors. Skratch Labs
Course maps and turn by turn directions may be found on our website http://quicksilver-running.com/quicksilver-trail-challenge
Oct 17, 2026
Distance — 21.1K
Type — Running
08:00
$55.00
Oct 17, 2026
Distance — 10K
Type — Running
08:15
$45.00
These values represent the 3-year monthly averages for October in San Jose.
Learn more about the host city, San Jose.
San Jose, officially the City of San José, is the most populous city in the San Francisco Bay Area and Northern California, and the 13th-most populous in the United States, with an estimated 989,814 residents as of 2025. The city's metropolitan area is home to nearly two million people, while the broader combined statistical area has a population of over nine million. Located in Santa Clara Valley on the southern shore of San Francisco Bay, San Jose covers an area of 179.97 sq mi (466.1 km2) and is the county seat of Santa Clara County.
Read more launchTours and activities near San Jose, powered by Viator.
All-time top performances and historical records for Quicksilver Trail Challenge.
| Place | Name | Year | Time | |
|---|---|---|---|---|
| 🥇 | Martin Mumenthaler | '02 | 1:26:00 | |
| 🥈 | Gary Gellin | '10 | 1:26:25 | |
| 🥉 | Trevor Hunter | '09 | 1:26:55 | |
| 4 | Thomas Carnby | '04 | 1:28:08 | |
| 5 | Jean Pommier | '09 | 1:29:15 | |
| 6 | Jim Angelopoulos | '03 | 1:30:32 | |
| 7 | Brian Winco | '07 | 1:31:39 | |
| 8 | Derrick Peterman | '04 | 1:32:17 | |
| 9 | Christian Degen | '06 | 1:33:02 | |
| 10 | Kermit Cuff | '06 | 1:33:06 |
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