Upcoming Races Near Castro Valley, CA in April, 2026

Always Hope Easter Run 5K/10K/13.1 SAN FRANCISCO

San Francisco, CA

Saturday, April 4th, 2026

Featured

5K

10K

Half

View details for race Always Hope Easter Run 5K/10K/13.1 SAN FRANCISCO

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10th Antioch Rotary Club Bunny Hop 5K a.k.a. An...

Antioch, CA

Saturday, April 4th, 2026

5K

View details for race 10th Antioch Rotary Club Bunny Hop 5K a.k.a. Antioch Rotary BunnyHop "X"

SPASM Lake Chabot Trail Run

Castro Valley, CA

Saturday, April 11th, 2026

Half

Marathon

Ultra

Trail

View details for race SPASM Lake Chabot Trail Run

The Great Benicia Run: Strait to the Finish

Benicia, CA

Sunday, April 12th, 2026

10K

5K

1 Mile

View details for race The Great Benicia Run: Strait to the Finish

Morgan Hill AAUW Wildflower Run

Morgan Hill, CA

Sunday, April 12th, 2026

10K

5K

Fast

View details for race Morgan Hill AAUW Wildflower Run

Horseshoe Lake Trail Run

La Honda, CA

Saturday, April 18th, 2026

1 Mile

Half

Ultra

Trail

View details for race Horseshoe Lake Trail Run

No Foolin' Foot Race

San Carlos, CA

Saturday, April 18th, 2026

15K

10K

5K

Trail

View details for race No Foolin' Foot Race

Alysia Montaño's Surprise Birthday 1 Mile Race

Berkeley, CA

Saturday, April 18th, 2026

1 Mile

View details for race Alysia Montaño's Surprise Birthday 1 Mile Race

FinFit Life 5K Fitness Challenge - Santa Clara, CA

Santa Clara, CA

Saturday, April 18th, 2026

5K

View details for race FinFit Life 5K Fitness Challenge - Santa Clara, CA

Pleasanton Run for Education

Pleasanton, CA

Sunday, April 19th, 2026

5K

10K

View details for race Pleasanton Run for Education

Loop the Lagoon

Vacaville, CA

Saturday, April 25th, 2026

5K

10K

1 Mile

View details for race Loop the Lagoon

St. Edward Spartan 5K Run & Walk

Fremont, CA

Saturday, April 25th, 2026

5K

View details for race St. Edward Spartan 5K Run & Walk

Ride 4A Reason 2026

Oakland, CA

Saturday, April 25th, 2026

10 Miles

Ultra

View details for race Ride 4A Reason 2026

Heart & Soles Run

Santa Clara, CA

Saturday, April 25th, 2026

5K

10K

View details for race Heart & Soles Run

Napa MPS Race for a Cure

Napa, CA

Sunday, April 26th, 2026

5K

1 Mile

View details for race Napa MPS Race for a Cure

Island Spring Bloom Half

Alameda, CA

Sunday, April 26th, 2026

5K

10K

Half

View details for race Island Spring Bloom Half

2026 Napa Spring Half Marathon & 5K

Napa, CA

Sunday, April 26th, 2026

View details for race 2026 Napa Spring Half Marathon & 5K

The Almaden Spring Run

San Jose, CA

Sunday, April 26th, 2026

5K

10K

View details for race The Almaden Spring Run

Paths to Possibility 5K Run/Walk/Roll

San Rafael, CA

Sunday, April 26th, 2026

5K

1 Mile

View details for race Paths to Possibility 5K Run/Walk/Roll

Explore more in Castro Valley, CA

Distances:

5K 10K Half Marathon Marathon

Months:

February March April

Tags:

Trail Boston Qualifiers Fast Courses

State:

All California races

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