Brazen Almost New Year's Eve

The Brazen Almost New Year's Eve event, taking place on December 27, 2025, at Lake Chabot in Castro Valley, CA, offers participants a choice of three race distances: a half marathon, 10K, and 5K. This event is perfect for runners looking to complete their year with a trail run or to achieve personal milestones before the New Year. Participants can also register for a New Year's Day event on January 1, 2026, to earn a special Mega-Medal.

Registration fees vary based on the distance and timing, and the event supports the East Bay Regional Parks Campership Program. Visit the organization's website for the most recent information.