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Calero Trail Run - Winter

San Jose, California · Saturday, December 5, 2026 · 50K, Marathon, 25K, Half Marathon, 15K, 10K

Official race page & registration ↗

Calero Trail Run - Winter takes place on Saturday, December 5, 2026 in San Jose, California. The race offers 6 distances: 50K, Marathon, 25K, Half Marathon, 15K, 10K. It is run on trail. For anyone travelling in, Morgan Hill is about 7 miles away and Sunnyvale is about 20 miles away.

It is one of 123 races on the California calendar that December.

Date
Saturday, December 5, 2026
Location
San Jose, California
Distances
50K, Marathon, 25K, Half Marathon, 15K, 10K
Surface
Trail

Listing from the 2026 race calendar, refreshed nightly. Details can change: confirm date and entry on the official race page before travelling. Spot an error? Tell us here.

Making a race weekend of it?

Stay near the start line in San Jose: check in Dec 4, out Dec 6.

Hotels on Booking.com ↗ Hotels on Expedia ↗

Common questions

When is Calero Trail Run - Winter?

Calero Trail Run - Winter is scheduled for Saturday, December 5, 2026.

Where is Calero Trail Run - Winter held?

Calero Trail Run - Winter is held in San Jose, California. It is about 7 miles from Morgan Hill and 20 miles from Sunnyvale.

What distances does Calero Trail Run - Winter offer?

The listed distances are 50K, Marathon, 25K, Half Marathon, 15K, 10K.

How do I register for Calero Trail Run - Winter?

Registration is handled on the official race page, linked at the top of this listing. Entry can close early if the race sells out.

More races nearby

See every race on the California calendar, all San Jose races, California Marathons, California Half Marathons, or use the Race Finder for maps and filters.