Articles

Belgian Ultrarunner Karel Sabbe's Record-Breaking Pacific Crest Trail Run Showcased in New YouTube Documentary

Explore Karel Sabbe's record-breaking Pacific Crest Trail run in a riveting documentary. Jour..

Trail Running: How it Can Help Reduce Stress and Anxiety

Trail running is an effective way to reduce stress, anxiety, and improve physical and mental he..

Trail Running vs. Road Running: Which One Is Right For You?

When it comes to running, there are two primary options to choose from: trail running and road..

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, taking place in San Jose, CA, features both 50K and 100K races on scenic, challenging trails. Celebrating its 40th edition, the event offers runners a chance to experience beautiful oak forests, meadows, and stunning views of the Santa Clara Valley and Santa Cruz Mountains. With a focus on community, 50% of the proceeds support non-profits promoting children's health and trail advocacy. The race is also a qualifying event for the Western States 100. Participants can expect well-stocked aid stations and a festive atmosphere at the finish line. 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 Dec 28

Brazen New Year's Eve

Castro Valley - 26 mi from San Jose

5 km

10 km

13 mi

The Brazen New Year's Eve event offers participants the chance to run a half marathon, 10K, or 5K at Lake Chabot in Castro Valley, California. This event is designed for runners of all levels, including hikers and walkers, making it a perfect way to close out the year with friends and fitness. Parti..

Wednesday Jan 1

Brazen New Year's Day

Castro Valley - 26 mi from San Jose

5 km

10 km

13 mi

The Brazen New Year's Day event offers a scenic and invigorating start to the new year with races at Lake Chabot in Castro Valley. Participants can choose from a half marathon, 10K, or 5K, making it a family-friendly occasion. The event encourages runners to kick off their resolutions and enjoy the ..

Saturday Jan 4

Hacienda Hills Trail Run - Winter

...

The Hacienda Hills Trail Run - Winter is an exciting trail running event taking place at Almaden Quicksilver County Park in San Jose, California. Scheduled for January 4, 2025, this event features nine different race distances, including a Kids Run, 5K, 10K, half marathon, marathon, and a challengin..

Sunday Jan 12

Crystal Springs (Winter) Trail Run

Woodside - 21 mi from San Jose

...

The Crystal Springs Trail Run, scheduled for January 12, 2025, in Woodside, California, offers a variety of race distances including an 8K, Half Marathon, 35K, Marathon, and 50K, along with a free Kid's Run for children aged 6 and under. Participants will enjoy scenic trails through Huddart Park, fe..

Saturday Jan 25

Coyote Hills Run

Fremont - 15 mi from San Jose

The Coyote Hills Run, organized by Brazen Racing, takes place at Coyote Hills Regional Park in Fremont, California, featuring a scenic running experience along the San Francisco Bay. Participants can choose from three race distances: a half marathon, a 10K, and a 5K, with courses designed to accommo..

Saturday Feb 1

Mt. Umunhum Trail Conquest - Winter

...

The Mt. Umunhum Trail Conquest - Winter is an exciting running event taking place at Almaden Quicksilver County Park in San Jose, CA. Participants can choose from various distances, including a 50K, Marathon, 30K, Half Marathon, 7 Miler, 5K, and a Kids Run.The course features scenic trails that lead..