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Quicksilver Endurance Runs

Name: Quicksilver Endurance Runs
Start: 2025-05-10
End: 2025-05-10
Location: San Jose

San Jose, United States • 10 May 2025

The Quicksilver Endurance Runs is an annual trail running event held in San Jose, California, featuring 50K and 100K races on scenic, challenging single-track trails and fire roads through oak forests, meadows, and ridges with panoramic views of the Santa Clara Valley and Santa Cruz Mountains. The 100K race is a Western States 100 qualifying event with a 17-hour time limit, while the 50K offers a 4-hour cutoff. Both races emphasize camaraderie, scenic beauty, and supporting non-profit causes that promote children's health and trail advocacy. The event includes fully-stocked aid stations, post-race food, and a vibrant volunteer community. Visit the organization's website for the most recent information.

United States California San Jose

Race information

Website Registration

100 km

13000 m+

100k

50 km

6000 m+

50k

Visit the organization's website for the most recent information.

Trail runs nearby

Saturday Nov 1

Zombierunner Halloween

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Run ZombieRunner Halloween at Hellyer County Park with distances from kids dash to full marathon, certified half and marathon courses, and custom finisher medals. Costumes encouraged for a festive family friendly race day.

Saturday Nov 1

Almaden Hills Trail Run - Fall

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Challenge yourself on the Almaden Hills Trail Run in San Jose on November 1 at Almaden Quicksilver Park. Scenic, very hilly trails with dirt roads and single track offer distances for every runner from 5K to 50K.

Saturday Nov 8

Mermaid Trail Run - Woodside

Woodside - 21 mi from San Jose

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Enjoy scenic redwood trails at Huddart Park with distances from 3 Mile to Half Marathon, plus a family Mermaid Dash for kids. Try the festive 6 Hour Challenge to see how many 3 Mile loops you can cover, or join virtually.

Saturday Nov 8

Lake Chabot Trail Run

Castro Valley - 26 mi from San Jose

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Join scenic trails around Lake Chabot on November 8, 2025 with distances from 8K to 50K and a free kids dash. Expect rolling hills, well marked routes, finisher medals and tech shirts for pre registered runners at the Marina.

Saturday Nov 8

Rancho Hills Trail Run - Fall

Morgan Hill - 19 mi from San Jose

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Rancho Hills Trail Run at Rancho Cañada del Oro offers steep, scenic singletrack and fire road routes with pockets of oak shade and creekside views. Races from 5K to 50K, staffed aid stations, and finisher medals welcome every trail runner.

Thursday Nov 27

Zoom Turkey Trot

Celebrate Thanksgiving at the Zoom Turkey Trot in San Jose at Hellyer Park with a USATF certified half, 10K, 5K and kids runs, plus t shirts and finisher medals. Flat, fast courses and stocked aid stations welcome all abilities.