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Half Marathon Races in Castro Valley, CA

5 upcoming Half Marathon races in Castro Valley. Run This events are listed first.

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DistanceAll5K10KHalf MarathonMarathonUltra
Nearby citiesSan DiegoLong BeachLos AngelesSacramentoSan FranciscoBakersfieldFresnoSan JoseHuntington BeachCoronadoClovisModesto

5 races

Fri, Nov 6, 2026

Lake Chabot Trail Run

Castro Valley, CA

Outside4.8 miMarathon18.6 mi31.1 mi

Thu, Dec 31, 2026

Brazen New Year's Eve

Castro Valley, CA

Outside5K10KMarathon

Thu, Dec 31, 2026

Brazen New Year's Day

Castro Valley, CA

Outside5K10KMarathon

Fri, Apr 23, 2027

SPASM Lake Chabot Trail Run

Castro Valley, CA

Outside5.0 miMarathon17.9 mi31.0 mi

Sat, Jun 5, 2027

2027 Lake Chabot Trail Challenge (Half Marathon & 5K)

Castro Valley, CA

OutsideMarathon5K

Other cities in California

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