Saturday, Dec 6, 2025

Calero Trail Run - Winter

23205 McKean Rd

San Jose, CA 50K, Trail Marathon, 25K, Half Marathon, 15K, 10K, 5K, Mile, Kids Run

Registration closes: Sat, Dec 6 @ 11:59PM PT

About the Race

Beginning at Calero County Park, this trail run has everything! Experience awesome single track, great hills, and dirt paths. The 50K is a challenging, fantastic trainer for Western States that includes oak trees, exposure, good heat training, and panoramic vistas.

Course Information

Address:
Calero County Park
23205 McKean Road
San Jose, CA 95120
Please make sure you are going to the right place, as some searches for Calero in GPS will route you to the reservoir boat launch ramps. That is not where we will be setup.

DO NOT GO to the Calero Park Reservoir Entrance.

Calero Park is located off McKean Road. Traveling to the park, from central San Jose, take Almaden Expressway south. Turn right onto Harry Road, then left onto McKean Road. From 101, exit on Bailey Avenue and head west until you reach McKean Road. Turn left onto McKean Road. Calero Park entrance and parking lot are on the right side 0.5 mile.
Click here for directions to Calero County Park.


Schedule
6:30 AM — Registration opens
6:45 AM — Bib Pick-Up
7:30 AM — Start of Kids Race
7:45 AM — Trail briefing
8:00 AM — Start of all other race distances

Cutoff Times Pertains to Half Marathon + Up
Mile 13 — 12:00PM
Mile 17 – 1:00PM
Mile 21 (Rancho Aid Station) – 2:20PM
Mile 26 – 4:00PM
Mile 28.5 – 4:30PM
Mile 31 – 5:00PM (RACE OVER)

Course Information & Maps
Kids Run
https://www.plotaroute.com/route/2433842

1 Mile
https://www.plotaroute.com/route/2433841

5K
https://www.plotaroute.com/route/2566716

10K
https://www.plotaroute.com/route/2566718

15K (11:00am overall cutoff, 3 Hour Time Limit)
https://www.plotaroute.com/route/2566722

Half Marathon (12:00pm, 4 Hour Time Limit)
https://www.plotaroute.com/route/2566729

25K (1:00pm overall cutoff, 5 Hour Time Limit)
Complete 13 Mile Course and then complete the 5K Course.
https://www.plotaroute.com/route/2626190

Trail Marathon (4:00pm overall cutoff, 8 Hour Time Limit)
Complete 13 Mile Course. Then Reverse 13 Mile Course.
Done.
https://www.plotaroute.com/route/2626195

50K (5:00pm overall cutoff, 9 Hour Time Limit)
Complete 13 Mile Course. Then Reverse 13 Mile Course. Then Run out 2.5 Miles following orange ribbons and turn around at red ribbons.
Done.

13 MILE COURSE: https://www.plotaroute.com/route/2566729

Bib Pick-Up/Registration will take place on race day. Race day registration available.

Detailed course descriptions and maps are available at the following link:
https://tctruns.com/calero-trail-run-winter/

Additional Information:
Courses will be marked with ribbons, signs & gypsum.
Please dress appropriately for an endurance run.
All finishers will receive a commemorative medal.
Aid stations will be available.

Please do not hesitate to e-mail us at rd@tctruns.com if you have any questions.

Event's current local time: 3:24 PM PT

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