California · 5K · 10K · 13.2 Miles

Brazen New Year's Day

Brazen New Year's Day is a 5K, 10K and 13.2 Miles event held in Castro Valley, California. Its next confirmed date is Friday, January 1, 2027.

Race day
January 1, 2027
Location
Castro Valley, CA

Race details

Date
Friday, January 1, 2027
Distances
5K, 10K, 13.2 Miles
Course
2075 ft gain
Registration
runsignup.com
Official website
brazenracing.com

Registration, course & weather

Registration status
Open
Start time
8:30 AM PST
Course profile
Loop course; Road surface; 2075 ft gain (estimated from third-party elevation data)

About the Brazen New Year's Day

The sun is rising on Friday morning, January 1st, the first day of 2027. Where should you be? Pounding the trails of Lake Chabot, of course! Join us at Lake Chabot in Castro Valley for the scenic and invigorating 5K, 10K or half marathon. Better yet, make sure you run at the Brazen New Year's Eve race and then you can start 2026 with the highly coveted New Year Mega Medal! Learn about our Brazen New Year's Eve race here. Take it even one step higher by running both half marathons (one on 12/31 …

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Brazen New Year's Day: common questions

When is the Brazen New Year's Day?
The next confirmed date is Friday, January 1, 2027.
Where is the Brazen New Year's Day held?
In Castro Valley, California.
What distances does the Brazen New Year's Day offer?
5K, 10K and 13.2 Miles.
How do I register for the Brazen New Year's Day?
Registration is handled by the organiser at runsignup.com. Entry fees, caps and deadlines are set there.
Is registration open for the Brazen New Year's Day?
Yes — registration is open. Listed fee for the longest distance, $100 (from runsignup.com, checked October 30, 2026).
What time does the Brazen New Year's Day start?
8:30 AM PST.
What is the course like at the Brazen New Year's Day?
Loop course; Road surface; 2075 ft gain (estimated from third-party elevation data).