Brazen Almost New Year's Eve
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Event overview
Brazen Almost New Year's Eve 2025 is a trail running event on Saturday, December 27, 2025, at Lake Chabot in Castro Valley, California. The event site address is 17936 Lake Chabot Rd, Castro Valley, CA 94546. The event is part of a pair of Brazen events that also includes a separate New Year’s Day race on January 1, 2026; each race requires separate registration. Participants who register for both days receive the Brazen New Year Mega-Medal.
Race options
The event offers multiple distance options:
- Half marathon
- 10K
- 5K
- Remote option
There is a designated hiker start option for the half marathon for walkers who expect to take longer than 3.5 to 4 hours to complete the course.
Registration and fees
Registration is open with tiered pricing. Listed price ranges are:
- 5K: about $74.84 to $85.52
- 10K: about $84.45 to $95.12
- Half marathon: about $103.66 to $114.34
- Remote: about $61.34 to $72.09
Fees shown include mandatory charges and items. The event lists the Race Director as the event contact. The East Bay Regional Parks Campership Program is listed as a fundraising organization for the event. Visit the organization's website for the most recent information.
