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Calero Trail Run - Winter race photo

Calero Trail Run - Winter

The city you want to run becomes your next trip.

Calero Trail Run - Winter race photoSan Jose
US
Chris Hunkeler · flickr (CC BY-SA)Elinor Gates · CC0
Race date in 58 days
Dec 5, 2026 Sat
City · Distance
San Jose · 50km
Entry fee
$105Varies by event and entry period
Status
OpenTBD ~ Fri, December 4, 2026See how to enter ↗
Official website ↗D-day as of Oct 8, 2026
Calero Trail Run - Winter race photo
Chris Hunkeler · flickr (CC BY-SA)
Calero Trail Run - Winter race photo
Elinor Gates · CC0
About the raceHow to enterCourseRace PrepTravel
Why you dream of this race

THE DREAM

About Calero Trail Run - Winter — what makes it special

ABOUT THE RACE

A day you'll remember,
long past the finish line.

Departs Calero County Park, California.

Singletrack, hills, and dirt roads mix throughout.

50K features oak forest and exposed sections;

ideal for heat training before Western States and offers open vistas.

The road to your own record

Picture the course in advance
and find the pace that fits you.

When the city cheers

Streets lined with cheers, runners all around.
You'll be part of that scene.

The trip that follows the run

Take it slow with the finish still in you,
and meet the city all over again.

Calero Trail Run - Winter runner reviews and race reports

Stories from those who ran it first.

From the joy of finishing to the tough moments — read what runners wrote themselves.

No runner reports yet. We'll add them here as they come in.

See it on video,
feel it through their stories.

Preview the course and read what runners who went before you wrote.

Full recap

Choose Adventure California Style · Full recap

View on YouTube

This may be from a past edition. Check the organizer for this year's course and operations.

The way in that fits you

YOUR ENTRY

How to enter Calero Trail Run - Winter — registration routes

How to reach the start line —
start with what fits you.

Here are the ways to enter and what each requires.
Check the organizer's page for whether entries are open.

Marathon

Entry cost $105

Trail Marathon · subject to change — verify officially

Organizer's page
About 5K · 25K
Official race websiteEntry options
From the start line to the finish

RACE WEEK

Calero Trail Run - Winter course map and elevation

The 50km I'll run

Know the course and time limit, and race day comes into focus.

Runners start · local timeFrom 08:00
Time limit9 hours
Show more

9 hours (50K, final time limit 17:00)

EventStart
Ultra08:00
Marathon42.195km08:00
Half21.0975km08:00
10K10km08:00
5K5km08:00
Other15km08:00
Other25km08:00
START

Calero County Park, 23205 McKean Rd, San Jose, CA

Start · Google Maps

Cut-off
21-mile point (Rancho Cañada del Oro) at 2:20 PM; final cutoff at 5:00 PM

The race is divided into 9 divisions, including 50K, Trail Marathon, 25K, and Half Marathon.

Start line is located in San Jose, CA, and the start time is 8:00 AM local time.

Typical race-season temperature: around 8°C (47°F)
Short sleeves or light long sleeves + arm warmers

Participant benefits

Finisher medal

Where and when to collect your Calero Trail Run - Winter race bib

To the start line,
step by step.

Pick up your bib, check your wave.
So on race morning, you can just run.

From the 2025 edition

Pick up your bib at the expo

On-site registration on the day of the competition (6:30 a.m.)·Packet Pickup (7:00 a.m.)
On-site registration on the day of the competition (6:30 a.m.)·Packet Pickup (7:00 a.m.)

Stations & transport near the venue

Getting to the start

Calero County Park, 23205 McKean Road, San Jose, CA 95120

No public transit.

Official listing gives explicit driving directions and warns: do NOT go to the Calero Park Reservoir Entrance (a different, wrong entrance).

Organized by Troy's California Trail Runs (tctruns.com).

Registration opens 7:00 AM, most distances start 8:00 AM, Kids Run 7:30 AM.

Getting to the finish

Same — Calero County Park

Additional aid station at the Rancho Cañada del Oro parking lot along the course.

Stations & transport near the venue

San Jose and the wider Bay Area use the Clipper card (also accepted as contactless tap-to-pay on VTA light rail and buses),

but Calero County Park itself is not served by transit.

Car access is needed, and a park parking fee typically applies.

Stations & transport near the venue

Free parking at Calero; carpooling is recommended.

Source · checked Aug 24, 2026
READY TO RUN

From race morning to after the finish.

Your start time, fuel and bag drop.
Know them ahead and the run feels easier.

Registration is available online through UltraSignup and remains open until race morning.

Advance Entry fee ranges from $25 (Kids Run) to $115 (50K), depending on the event,

with a 15% discount for active-duty military personnel and first responders such as firefighters and police officers.

On race day, on-site registration opens at 6:30 a.m., and bib can be picked up from 7:00 a.m. A course briefing is held at 7:45 a.m.;

Kids Run starts at 7:30 a.m., while all other events, including the 50K, start at 8:00 a.m.

The 50K has an overall time limit of 9 hours,

so runners must finish by 5:00 p.m. Runners who fail to pass the Rancho Cañada del Oro aid station at mile 21 by 2:20 p.m. are disqualified.

Parking at Calero is free, and the organizers encourage carpooling.

Drop-bag storage is available exclusively to 50K participants.

Times are local to San Jose. Check the latest official information before the race.

A trip built around the race

STAY A LITTLE

MAKE IT A RUNTRIP

The race is one day,
the trip can be longer.

From a hotel that makes race morning easy,
to the meals and views you'll enjoy with the medal on.

Time for you, before and after the finish

43 experiences

Rest a little, wander a little.
Pick what suits you and whoever you're with.

Muir Woods & Sausalito Tour (including Bay Cruise / Departing from San Francisco)

$135

View on Klook

San Francisco Bus & Boat Adventure Full-Day Tour

$101

View on Klook

Private Custom San Francisco Tour - Sunset or Night (Up to 6 People)

$332

View on Klook

San Francisco Luxury Catamaran Sunset Cruise Tour

$85

View on Klook

Mission District Small-Group Street Food Tour (Half Day)

$87

View on Klook

San Francisco North Beach & Little Italy Walking Food Tour

$87

View on Klook

San Francisco North Beach Gourmet Ghost Food Tour

$100

View on Klook

Napa Valley Wine & Food Tasting Tour from San Francisco

$303

View on Klook

Alcatraz Day Tour & Aquarium + Muir Woods & Sausalito

$222

View on Klook

Cable Car Museum & Chinatown San Francisco Half-Day Small-Group & City Highlights Tour

$133

View on Klook

Guided Bike Tour from the Golden Gate Bridge to Sausalito

$67

View on Klook

Alcatraz + Golden Gate Bridge Bike Tour (2 Days)

$150

View on Klook

San Francisco: Soul of San Francisco Electric Bike Tour — Tacos & Chocolate

$165

View on GetYourGuide

Alcatraz Visit + San Francisco Electric Bike Tour (2 Days)

$186

View on Klook

San Francisco Golden Gate Bridge Full-Day Bike Rental (Map Included)

$41

View on Klook

San Francisco Fogcutter City & Alcatraz Island Tour

$208

View on Klook

San Francisco Mission Dolores Half-Day Large-Group Tour

$100

View on Klook

San Francisco Grand City Tour (Optional Add-Ons Available)

$71

View on Klook

San Francisco Chinatown and North Beach Gourmet Evening Walking Tour

$97

View on Klook

San Francisco North Beach Half-Day Cultural Walking Tour

$90

View on Klook

Alcatraz Ticket & Ferry (Including North Beach Guided Walking Tour)

$80

View on Klook
Hotels that make race morning easyDistances are straight-line from the start.View on mapEating well is part of the tripA meal before the race, a dinner to celebrate the finish.View on mapSeeing San Jose with the medal onThe city you ran — this time, a little slower.View on map

Hotel distances are straight-line from the start. Distances and ratings for food and sights come from the place provider, and experiences are travel products in San Jose.

Total cost and budget for Calero Trail Run - Winter

TRAVEL ESSENTIALS

Trip prep too,
light and in one place.

ChecklistLocal eSIM · YesimFlight delay or cancellation compensation · AirHelpPace calculator

Once saved, you can open this page without an internet connection

Runner stories and questions about Calero Trail Run - Winter

RUN TOGETHER

With runners who dream of
the same start line.

Be the first runner
Leave this room's first post

San Jose runners' room

Frequently asked questions about Calero Trail Run - Winter

FAQ
When does Calero Trail Run - Winter 2026 take place?

It takes place on Sat, December 5, 2026 in San Jose, CA, United States.

How much is the Calero Trail Run - Winter 2026 entry fee?

The main event costs $105.

What is the time limit for Calero Trail Run - Winter 2026?

9 hours (50K, final time limit 17:00).

What distances does Calero Trail Run - Winter 2026 offer?

Ultra.

What time does Calero Trail Run - Winter 2026 start?

The race starts at 08:00.

Where does Calero Trail Run - Winter 2026 start?

Calero County Park, 23205 McKean Rd, San Jose, CA.

What are the Calero Trail Run - Winter 2026 cut-off times?

21-mile point (Rancho Cañada del Oro) at 2:20 PM; final cutoff at 5:00 PM.

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