Upcoming Half Marathons within 50 miles of Castro Valley, CA

Show Map
Specify Date Range
Start Date
End Date
Specify Distance Range
1. Rodeo Beach Rumble
2. Romancing the Island Half Marathon
3. Sierra Azul Challenge Run
4. Western Pacific Marathon
5. Marin County Half Marathon
6. Om Run
7. Sasquatch Scramble
8. Silicon Valley Half
9. Mermaid Run East Bay
10. Bay Bridge Half Marathon
11. Horseshoe Lake
12. Cinderella
13. Mother's Day Run
14. Muir Woods Marathon
15. Wildcat Half Marathon
16. Mt Diablo Trail Run
17. Nitro Trail Half Marathon
18. Summer's Gate
19. Surfer's Path Marathon
20. Calero Trail Run

For the love of all that Is good And moisture wicking...

Though we Try To be accurate And On top Of things... Race details can change When we aren't lookin. And once in a while we simply make a mistake.

ALWAYS visit the race's website for the most complete and accurate race information.