Brazen New Year’s Eve Half Marathon/10K/5K2026
31.12.2026Castro Valley (United States)
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Start line in
3 courses · 5–21.1 km
3 courses
Course analysis
21.1 km713 m D+
28effort kmⓘ21.1 km on the map · feels like 28 km
- D+
- 713 m
- D−
- 728 m
- Max alt.
- 258 m
- Steepest
- 7%
Segments
Elevation profile: 13.1M
70 m — 258 m
The race
A New Year's Eve trail race featuring a Half Marathon, 10K, and 5K on paved and dirt trails with rolling hills.
Where to stay
Find a place to stay near Castro Valley for the race.
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