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South Hills Single Track Trail Run - Summer

Name: South Hills Single Track Trail Run - Summer
Start: 2025-09-13
End: 2025-09-13
Location: San Jose

San Jose, United States • 13 Sep 2025

South Hills Single Track Trail Run takes place at Calero County Park in San Jose, California. The event offers a full slate of distances: 1 mile kids run, 5K, 10K, 9 mile, half marathon, 16 mile, trail marathon, and 50K. The course blends single-track trails and dirt roads, showcasing oak trees, hills, and panoramic views; the 50K is pitched as a tough Western States–training option with exposure and heat training.

Ribbons, signs, and gypsum mark the routes, with aid stations along the course. Drop bags are available, and finishers receive a commemorative medal. Time limit is 9.5 hours. Visit the organization's website for the most recent information.

United States California San Jose

Race information

Website

50 km

50k

26 mi

Trail Marathon

16 mi

16 Mile

13 mi

Half Marathon

9 mi

9 Mile

10 km

10k

5 km

1 Mile

Kids Run

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

Trail runs nearby

Saturday Dec 20

Woodside Ramble

Experience scenic single track trails under redwood canopy and along ridgelines at the Woodside Ramble. Distances from 10K to 50K offer a challenging, festive trail day; the event is sold out.

Saturday Dec 27

Brazen New Year's Eve

Ring out the year with Almost New Year's Eve at scenic Lake Chabot in Castro Valley on 12/27/25. Trail routes for runners, walkers and hikers include 5K, 10K and half marathon distances with free post race photos.

Thursday Jan 1

Brazen New Year's Day

Celebrate New Year’s Day with scenic loop races at Lake Chabot, from half marathon to 10K, 5K and remote options on rolling trail terrain. Enjoy free race photos and earn a New Year Mega Medal if you also ran Brazen New Year’s Eve.

Saturday Jan 3

Hacienda Hills Trail Run - Winter

...

Run scenic trails through Hacienda Hills at Almaden Quicksilver Park with distances for every level, from kids runs to ultramarathons. Take in Bay Area views, use on course aid and day of race registration, and earn a commemorative finisher..