Brazen New Year's Eve
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Brazen New Year's Eve at Lake Chabot
Brazen New Year's Eve is a trail running event held at Lake Chabot in Castro Valley, California on December 31, 2026. The event offers multiple distance options on the park trails and welcomes hikers and walkers as well as runners.
Available distances:
- Half marathon
- 10K
- 5K
The course runs on trails around Lake Chabot. Event materials note that volunteer photographers provide free photos and that official race results are published after the event. Volunteers support race operations.
The event is part of Brazen Racing's New Year offerings. Participants can pair this event with the New Year's Day race to earn a Brazen New Year Mega-Medal. For participants who complete a half marathon on December 31 and another on January 1, organizers describe a combined "Brazen New Year Marathon" composed of two half marathons across the two days.
Sponsors listed for the event include GU, Bodyfit, and CallJazz, which support the race. Information provided by the organizer covers race information, course details, bib pick-up, shirts and awards, volunteer opportunities, and frequently asked questions. Visit the organization's website for the most recent information.
