Brazen New Year's Eve

Castro Valley, United States • 27 Dec 2025

Event overview

Almost New Year's Eve is a Brazen Racing event at Lake Chabot in Castro Valley, California. The race is scheduled for 12/27/25. The event takes place on the trails around Lake Chabot and welcomes hikers and walkers as well as runners.

Race details and related offerings

Distances offered:

  • Half marathon
  • 10K
  • 5K

Brazen Racing also offers a separate New Year's Day race at Lake Chabot and a "Brazen New Year Marathon" option that combines two half marathons (listed as occurring on 12/28 and 1/1). Race results and free photos are available after the event. The event lists sponsors including GU and Optigenix, and it uses volunteer photographers and volunteers to support the race. Visit the organization's website for the most recent information.

Race information

Half Marathon
Half Marathon
10 km
10k
5 km
Visit the organization's website for the most recent information.
Trail runs nearby

Take on twisty dirt trails and big climbs around Montara Mountain at San Pedro Valley Park. Choose 10K, half marathon or 30K with aid stations, cupless racing and finisher medals for all.

A two day trail event in San Francisco that crosses the Golden Gate Bridge and runs the Marin Headlands. Multiple distances from 15K to 50 mile are offered and the event serves as the final stop of the Spartan Trail World Championship.

Runs at Coyote Hills Regional Park in Fremont, California on January 31, 2026. Courses include a half marathon, 10K and 5K over dirt, pavement and marsh boardwalks with bay views.

Test your legs on scenic Sierra Azul trails at Mt Umunhum Trail Conquest Winter, with distances from a kids run to 50K and routes that summit Mt Umunhum and Bald Mountain. Finishers earn commemorative medals and aid stations keep you fueled..