In 174 days · Thu, Dec 31, 2026
Don't let race day sneak up
One email during race week. That's it.
When
Thursday, December 31st, 2026
Where
17930 Lake Chabot Rd, Castro Valley CA
Distances
Half · 5K · 10K
About this race
Race Overview
- Date: New Year's Eve, Thursday, 12/31/2026
- Location: 17930 Lake Chabot Rd, Castro Valley, CA
- Events: 5K, 10K, and half marathon
- Registration: Join us at this link
Event Highlights
- Trail Opportunities: Whether you're looking to squeeze in your first trail run or you're looking to log that 1,000th mile before the clock strikes midnight, this is your chance.
- Double Event: Make it a double and join us on both New Year's Eve and New Year's Day to earn the Brazen New Year Mega-Medal!
- Separate Registration Required: Each race is a unique event on its own and requires separate registration.
- Back-to-Back Events: This year we will have back-to-back events at Lake Chabot, Castro Valley.
Course map
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