Brazen New Year's Eve
Castro Valley, United States • 31 Dec 2026
Brazen New Year's Eve - Lake Chabot, Castro Valley
The Brazen New Year's Eve race takes place on Thursday, December 31, 2026, at Lake Chabot in Castro Valley, California. The event is held on trail terrain around the lake and includes multiple distance options. Hikers and walkers are welcome to participate alongside runners.
Distances available:
- Half marathon
- 10K
- 5K
The event is part of a two-day New Year series. Participants can run a reverse course the next day to earn a Brazen New Year Mega-Medal. Those who complete a half marathon on December 31 and another half on January 1 can be recorded as completing the Brazen New Year Marathon, defined as two half marathons on consecutive days.
Race logistics include volunteer support and volunteer photographers who provide free photos. Official finishing times and past results are posted after the event. Sponsors are acknowledged for their contributions to the race.
Information about bib pickup, course details, shirts and awards, and frequently asked questions are provided for participants. Volunteer opportunities are available to support event operations. Visit the organization's website for the most recent information.