Brazen New Year's Eve

Castro Valley, United States • 27 Dec 2025

The Brazen New Year's Eve event offers participants the chance to run a half marathon, 10K, or 5K at Lake Chabot in Castro Valley, California. This event is designed for runners of all levels, including hikers and walkers, making it an inclusive experience. It serves as a perfect opportunity to finish the year strong, with options for those looking to complete their first trail run or log significant mileage before the year ends. Additionally, participants can join the New Year's Day race for a chance to earn a special Mega-Medal. Visit the organization's website for the most recent information.

Race information

13 mi
Half Marathon
10 km
10k
5 km
Visit the organization's website for the most recent information.
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