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Castro Valley, CA · 2027-01-01
Half Marathon
Recorded source snapshot, prepared 2026-10-10. Availability, fees and logistics may change. Live details will refresh when available; reconfirm with the organizer before planning. This snapshot date is a data retrieval date, not a new organizer verification.
A New Year’s Day trail half marathon at Lake Chabot. It is part of the Ultra Half Series; check the official course distance, hills and cutoff before entering.
Where it happens
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The route
2027 · Half Marathon
A route map has not been verified for this exact edition and distance. Course routes may change between editions.
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