Brazen New Year's Day - HALF MARATHON
Also in this race
These events were grouped as one card in discovery—pick another distance or date without going back.
External Event
Distance
13.2 mi
Pace
All paces
Terrain
Road
Difficulty
All Levels
About this run
The sun is rising on Friday morning, January 1st, the first day of 2027. Where should you be? Pounding the trails of Lake Chabot, of course! Join us at Lake Chabot in Castro Valley for the scenic and invigorating 5K, 10K or half marathon. Better yet, make sure you run at the Brazen New Year's Eve race and then you can start 2026 with the highly coveted New Year Mega Medal! Learn about our Brazen New Year's Eve race here. Take it even one step higher by running both half marathons (one on 12/31 and one on 1/1) and then brag to your friends: "It took me two years to finish that marathon"!
Typical conditions
For events around January 2027 in Castro Valley, CA, United States: Typical mid-winter / cooler season in this region — dress in layers and check the official page for weather-related changes.
How to prepare
Half marathon prep usually includes a weekly long run that builds toward 16–20 km, plus easy runs for recovery. Confirm packet pickup and start procedures on the official registration page.
Plan longer races for 2026Getting there
This event is listed in Castro Valley, CA, United States. Confirm the exact start venue, parking, and transit options on the official registration page.
Registration is handled by the official event organizer
Know a local group? Host a community run in Castro Valley
Also in this race
- Jan 1, 2027 · 1:30 PM
- Jan 1, 2027 · 2:30 PM (this one)
- Jan 1, 2027 · 2:55 PM
- Jan 1, 2027 · 3:10 PM
