Find a race Clubs For organizers Pricing

Create your race

Run This
Races
California
Castro Valley
Marathon

Race calendar

Marathon Races in Castro Valley, CA

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

Sort

Search all races

DistanceAll 5K 10K Half Marathon Marathon Ultra

Nearby citiesSan Diego Long Beach Los Angeles San Francisco Sacramento Fresno Bakersfield San Jose Coronado Huntington Beach Irvine Canoga Park

2 races

Sat, Nov 7, 2026

Lake Chabot Trail Run (Sold Out!)

Castro Valley, CA

Outside4.8 miHalf marathon18.6 miMarathon

Sat, Apr 17, 2027

SPASM Lake Chabot Trail Run

Castro Valley, CA

Outside5 miHalf marathon17.9 miMarathon

Own a race in Castro Valley?

List it on Run This and it shows up right here, where runners are already looking. Run This is any race director's best friend and the most modern platform for your registration. Already listed? Claim it.

List your race

Your whole running year, in one place.

Follow your friends, save Castro Valley, CA races, and keep every start line in one calendar.

Create your free account

Never miss a race your friends are running.

Save Castro Valley, CA races, see who else is going, and get a nudge before signups close.

Create your free account

Other cities in California

San Diego101 Long Beach73 Los Angeles71 San Francisco34 Sacramento32 Fresno28 Bakersfield20 San Jose18 Coronado14 Huntington Beach11 Irvine