Brazen New Year's Eve

DEC
31
2026
Trail races on the Lake Chabot trails in Castro Valley on December 31, 2026 offering half marathon, 10K and 5K; hikers and walkers welcome.
Thu 31 Dec 2026
Half Marathon 10 kilometers 5 kilometers

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Brazen New Year's Eve at Lake Chabot

Brazen Racing stages a trail running event at Lake Chabot in Castro Valley, California on December 31, 2026. The event offers timed races on the park trails and posts race results and photos after the event. Volunteer photographers provide free photos and volunteer opportunities are organized for the event.

Distances offered include:

  • Half marathon
  • 10K
  • 5K

Hikers and walkers are explicitly welcome to participate. There is an option to run a companion event on January 1 to earn the Brazen New Year Mega-Medal; completing the half marathon on both December 31 and January 1 is presented as the basis for the Brazen New Year Marathon. The event materials note race information pages for course details, bib pickup, shirts and awards, and frequently asked questions. Sponsors are acknowledged for supporting the race and helping to manage entry costs.

The description focuses on the event format, location on the Lake Chabot trails, the range of distances, and ancillary services such as results posting, free photos, and volunteer coordination. Visit the organization's website for the most recent information.

Half Marathon
Half Marathon
10 km
10k
5 km

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