April Classic Races within 50 miles of Castro Valley, CA
City Location
1. Fog City Run
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Apr 2, 2025Wednesday
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5K run
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San Francisco, CA
19 miles point to pointSan Francisco County, CA
2. Byxbee parkrun
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Apr 5, 2025Saturday
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5K run
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Palo Alto, CA
18 miles point to pointSanta Clara County, CA
3. Golden Gate Headlands Marathon
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Apr 5, 2025Saturday
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26.2M, 13.1M, 10K trail run
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Mill Valley, CA
28 miles point to pointMarin County, CA
4. San Jose Spartan
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Apr 5, 2025Saturday
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50K, 21K, 1K obstacle run | 5K run
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San Jose, CA
19 miles point to pointSanta Clara County, CA
5. Santa Teresa King Richard Annual Trail Run
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Apr 5, 2025Saturday
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13.1M, 10M, 10K, 5K trail run
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San Jose, CA
19 miles point to pointSanta Clara County, CA
6. The Firehouse Run
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Apr 5, 2025Saturday
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10K, 5K run | kids run
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Santa Clara, CA
24 miles point to pointSanta Clara County, CA
7. Diablo Trails Challenge
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Past DateApr 6, 2024Saturday
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50K, 13.1M, 10K, 5K trail run
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Walnut Creek, CA
15 miles point to pointContra Costa County, CA
8. Dr Martin Luther King Jr 10K/5K
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Past DateApr 6, 2024Saturday
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10K, 5K run
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Stockton, CA
46 miles point to pointSan Joaquin County, CA
9. No Foolin' Foot Race
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Past DateApr 6, 2024Saturday
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10K, 5K trail run | kids run
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San Carlos, CA
16 miles point to pointSan Mateo County, CA
10. San Jose Spartan
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Apr 6, 2025Sunday
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10K, 5K, 1K obstacle run | 5K run
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San Jose, CA
19 miles point to pointSanta Clara County, CA
11. Tillman Honor Run
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Past DateApr 6, 2024Saturday
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4.2M run
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San Jose, CA
19 miles point to pointSanta Clara County, CA
12. Fog City Run
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Apr 9, 2025Wednesday
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5K run
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San Francisco, CA
19 miles point to pointSan Francisco County, CA
13. Byxbee parkrun
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Apr 12, 2025Saturday
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5K run
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Palo Alto, CA
18 miles point to pointSanta Clara County, CA
14. Fiercelifit Half Marathon & 10K/5K
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Apr 12, 2025Saturday
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13.1M, 10K, 5K run
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Fremont, CA
11 miles point to pointAlameda County, CA
15. Romancing the Island Half Marathon
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Apr 12, 2025Saturday
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13.1M, 10K trail run
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Tiburon, CA
24 miles point to pointMarin County, CA
16. SPASM Lake Chabot
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Apr 12, 2025Saturday
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50K, 26.2M, 30K, 13.1M, 8K trail run | kids run
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Castro Valley, CA
Alameda County, CA
17. Colusa Circle 5K
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Past DateApr 13, 2024Saturday
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5K run
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Kensington, CA
18 miles point to pointContra Costa County, CA
18. Rodeo Beach Rumble
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Past DateApr 13, 2024Saturday
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13.1M run | 8K trail run
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Sausalito, CA
24 miles point to pointMarin County, CA
19. Woodside Crossover
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Past DateApr 13, 2024Saturday
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50K, 35K, 13.1M, 10K trail run
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Woodside, CA
21 miles point to pointSan Mateo County, CA
20. Airport Runway Run
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Past DateApr 14, 2024Sunday
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10K, 5K, 2K run
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San Carlos, CA
16 miles point to pointSan Mateo County, CA
For the love of all that Is good And moisture wicking...
Though we Try To be accurate And On top Of things... Race details can change When we aren't lookin. And once in a while we simply make a mistake.
ALWAYS visit the race's website for the most complete and accurate race information.
ALWAYS visit the race's website for the most complete and accurate race information.
