Brazen New Year's Eve 2026
Castro Valley, California · Thursday, December 31, 2026
The Brazen New Year's Eve 2026 is a 5k, 10k, half marathon, running, trail running, and virtual event held on Thursday, December 31, 2026. It is located at 17404 Lake Chabot Road in Castro Valley, California.
- Date
- Thursday, December 31, 2026 at 7:30 AM
- Location
- 17404 Lake Chabot Road
Castro Valley, California
94546
United States
OpenStreetMap Google Maps
Whether you're looking to squeeze in your first trail run or you're looking to log that 1,000th mile before the clock strikes midnight on 12/31/2026, this is your chance.
Note: This year we will have back-to-back events at Lake Chabot, Castro Valley with a 5K, 10K and half marathon!
New Year's Eve, Thursday, 12/31/2026
New Year's Day, Friday, 1/1/2027*
Make it a double and join us both days and earn the Brazen New Year Mega-Medal!
*Note: Each race is a unique event on its own and requires separate registration.