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Ultra Races in Castro Valley, California

Explore Ultra events in Castro Valley, California during September 2025.

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By Race Type

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Top Events

Noble Canyon 50K/15K

Noble Canyon 50K/15K

Ultra

Pine Valley, CA

Date TBD

12:00 AM PDT

Dick Collins Firetrails

Dick Collins Firetrails

Ultra

Castro Valley, CA

Date TBD

12:00 AM PDT

Bandit Ultra Trail

Bandit Ultra Trail

Ultra

Los Angeles (Simi Valley), CA

Date TBD

12:00 AM PDT