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Castro Valley · destination, not courseCastro Valley destination photo, not a view of this race course. Castro Valley Library entrance (2026-09-15 19:01:01). Photo by BriefEdits · CC BY-SA 4.0 · Original image. Resized, display-cropped and gently color-graded.
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Recorded
160 ft of climbing
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Time limit not currently verified
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Personal fit
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Partial information
out-and-back
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Approximate organizer-stated ascent (~160 ft).
5K yellow route to turnaround shown in official map.
Explicit 2027 shared map; 5K yellow to turnaround.
Pacific time
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Organizer-advertised category; exact measured distance and certification are not established.
Official organizer information
Recorded source snapshot, prepared Oct 14, 2026. Availability, fees and logistics may change. Live details will refresh when available; the recorded details may change. This snapshot date is a data retrieval date, not a new organizer verification.
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