RunRace USA › California › Brazen New Year's Eve 2026
Brazen New Year's Eve 2026
Castro Valley, California · Thursday, December 31, 2026 · 5K, 10K, Half Marathon
Official race page & registration ↗- Date
- Thursday, December 31, 2026
- Location
- Castro Valley, California
- Distances
- 5K, 10K, Half Marathon
Listing from the 2026 race calendar, refreshed nightly. Details can change: confirm date and entry on the official race page before travelling. Spot an error? Tell us here.
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See every race on the California calendar, or use the Race Finder for maps and filters.