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Running calendar near Castro Valley 2025-2026

Explore the top running races near Castro Valley for 2025-2026! We've gathered 74 exciting races in the area. Check out our detailed list below to find your next local race.

August 2025
Aug
15
Friday

Beer City Slam

5 km 10 km 13 mi
Aug
16
Saturday

Redwood (Summer) Trail Run

Trail Run 5 mi 13 mi ... 26 mi 50 km
Aug
16
Saturday

Almaden Hills Trail Run - Summer

Trail Run 5 km 10 km ... 26 mi 50 km
Aug
16
Saturday

Tamalpa Headlands 50K

Trail Run 50 km
Aug
16
Saturday

Mission Bay Find-Your-Way 10K San Francisco

5 km 10 km
Aug
23
Saturday

We Run Oakland: For Our Children

5 km
Aug
31
Sunday

Crystal Springs Trail Run

Trail Run 8 km 13 mi ... 26 mi 50 km
September 2025
Sep
7
Sunday

Berkeley Half

13 mi 26 mi
Sep
7
Sunday

Diplo's Run Club

5 km
Sep
7
Sunday

Diablo Trail Run

Trail Run 4 mi 10 mi ... 26 mi 50 km
Sep
20
Saturday

Newark Mile 4k

4 km
Sep
20
Saturday

Rocky Ridge Trail Half Marathon

Trail Run 5 km 10 km 13 mi
Sep
21
Sunday

Island Running Festival

5 km 10 km 13 mi
Sep
27-28
Sa - Su

Dick Collins Firetrails

Trail Run 42 km 80 km 100 km
Sep
27
Saturday

Pacifica Summit Run

Trail Run 10 km 13 mi
October 2025
Oct
4
Saturday

Star City San Bruno Mountain Half Marathon

Trail Run 5 km 13 mi
Oct
4-5
Sa - Su

Rock 'n' Roll San Jose

5 km 10 km 13 mi
Oct
11
Saturday

Ruth Anderson Memorial Endurance Run

Trail Run 4 mi
Oct
12
Sunday

Run for Education

5 km 10 km
Oct
12
Sunday

Diwali Fun Run

5 km 10 km
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