Upcoming Marathons within 25 miles of Castro Valley, CA on Saturdays

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All California
Name Open Date Close Date
With Virtual Option
1. Calero Trail Run
2. Mt. Umunhum Ultras
3. Summer Calero Trail Run
4. Redwood (Summer) Trail Run
5. Almaden Hills Trail Run
6. South Hills Single Track Trail Run
7. Dick Collins Firetrails
8. Mt Umunhum to Quicksilver Point to Point
9. Look Good Feel Good Race
10. Mt. Umunhum Trail Conquest
11. Pinkathon Challenge for Breast Cancer
12. Almaden Hills Trail Run
13. ZombieRunner Halloween
14. Lake Chabot
15. Calero Trail Run
16. ZombieRunner Quarry Lakes Run
17. Hacienda Hills Run
18. Mt. Umunhum Trail Conquest
19. South Hills Single Track Trail Run - Spring
20. Sierra Azul Trail Challenge

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.