Brazen New Year's Eve
Castro Valley, United States • 27 Dec 2025
The Brazen New Year's Eve event, held at Lake Chabot in Castro Valley, California, offers runners and walkers the opportunity to participate in a half marathon, 10K, and 5K trail races. This festive race encourages participants to close out the year with a scenic run on beautiful trails, welcoming all levels from first-time trail runners to seasoned athletes. The event fosters a friendly and celebratory atmosphere, providing a final chance to log miles before the new year. Additionally, participants can earn a special Brazen New Year Mega-Medal by also joining the New Year's Day race, making it a unique way to start and end the year actively. Visit the organization's website for the most recent information.