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Official entry
Entries openVerified
Verified Sun, 11 Oct 2026
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USARunningTrail10K · 10 km / 6.2 mi15K · 15 km / 9.3 mi1mi · 1.6 km / 1.0 mi25K · 25 km / 15.5 mi50K · 50 km / 31.1 mi5K · 5 km / 3.1 miHalf · 21.1 km / 13.1 mi
Calero Trail Run Winter
San Jose, California, Calero County Park, 23205 McKean Road · USA
Next race day
Sat, 5 Dec 2026
8 distances · see start times below
About Calero Trail Run Winter
Calero Trail Run Winter is a running event in San Jose, California, Calero County Park, 23205 McKean Road, United States. Recorded disciplines include 10K, 15K, 1mi, 25K, 50K, 5K, half marathon. The listed surface is trail. The listed organiser is Troy's California Trail Runs. The next listed date is 5 December 2026. Check the organiser's information for entry and race-day arrangements.
Dates, starts & entry
Times are local to the race. Select the entry route for your distance.
- Official entry
Half · 21.1 km / 13.1 mi
Sat, 5 Dec 2026
Starts 08:00 PST
Entries open
Advertised trail category; course measurements are approximate. Start at the McKean Road entrance, not the reservoir boat launch. Check the organiser’s distance-specific cutoffs.
Edition source - Official entry
Marathon · 42.2 km / 26.2 mi
Sat, 5 Dec 2026
Starts 08:00 PST
Entries open
Advertised trail category; course measurements are approximate. Start at the McKean Road entrance, not the reservoir boat launch. Check the organiser’s distance-specific cutoffs.
Edition source - Official entry
10K · 10 km / 6.2 mi
Sat, 5 Dec 2026
Starts 08:00 PST
Entries open
Advertised trail category; course measurements are approximate. Start at the McKean Road entrance, not the reservoir boat launch. Check the organiser’s distance-specific cutoffs.
Edition source - Official entry
5K · 5 km / 3.1 mi
Sat, 5 Dec 2026
Starts 08:00 PST
Entries open
Advertised trail category; course measurements are approximate. Start at the McKean Road entrance, not the reservoir boat launch. Check the organiser’s distance-specific cutoffs.
Edition source - Official entry
1mi · 1.6 km / 1.0 mi
Sat, 5 Dec 2026
Starts 08:00 PST
Entries open
Advertised trail category; course measurements are approximate. Start at the McKean Road entrance, not the reservoir boat launch. Check the organiser’s distance-specific cutoffs.
Edition source - Official entry
15K · 15 km / 9.3 mi
Sat, 5 Dec 2026
Starts 08:00 PST
Entries open
Advertised trail category; course measurements are approximate. Start at the McKean Road entrance, not the reservoir boat launch. Check the organiser’s distance-specific cutoffs.
Edition source - Official entry
25K · 25 km / 15.5 mi
Sat, 5 Dec 2026
Starts 08:00 PST
Entries open
Advertised trail category; course measurements are approximate. Start at the McKean Road entrance, not the reservoir boat launch. Check the organiser’s distance-specific cutoffs.
Edition source - Official entry
50K · 50 km / 31.1 mi
Sat, 5 Dec 2026
Starts 08:00 PST
Entries open
Advertised trail category; course measurements are approximate. Start at the McKean Road entrance, not the reservoir boat launch. Check the organiser’s distance-specific cutoffs.
Edition source
Location & race day
Listed venue / area
Calero County Park, 23205 McKean Road, San Jose, CaliforniaUSA
Confirm the exact start line, parking and arrival instructions with the organiser. A listed town or postcode may cover a wider area.
About the race
Winter trail races on Calero County Park’s singletrack and rolling dirt paths, with several distances from one mile to an ultra.
- Surface:
- Trail
- Organiser:
- Troy's California Trail Runs
Ways to enter
Compare the listed booking routes. Verified links show when they were checked.
Sat, 5 Dec 2026
Third-party prices, booking fees, allocations and refund terms can differ. Confirm the final details with the provider before paying.
Results
Public-figure or athlete-approved ATHRECS results, plus verified organiser links.
No verified results links have been added yet.
Past races
None listed yet.
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