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Running races in Castro Valley, California

2026 and 2027 race calendar. 3 upcoming, updated daily.

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Map of races in Castro Valley, California
RunningTrailCyclingTriathlonObstacleGroup of races
3 upcoming
Sport
AllRunning3Trail3
Distance
Any5K410K2Half marathon6Marathon250K2
January 2027
July 2027

Bad Bass

Castro Valley, California, United States
RunningHalf marathon6.4 miles3.35 miles
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