May Trail Runs within 200 miles of Castro Valley, CA
City Location
1. Hacienda Hills Run
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May 3, 2025Saturday
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50K, 26.2M, 13.1M, 9M, 10K, 5K trail run
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San Jose, CA
19 miles point to pointSanta Clara County, CA
2. Folsom Lake Trail Run
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Past DateMay 4, 2024Saturday
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50K, 30K, 13.1M, 10K trail run
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Folsom, CA
83 miles point to pointSacramento County, CA
3. Miwok 100K
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Past DateMay 4, 2024Saturday
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100K trail run
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Stinson Beach, CA
33 miles point to pointMarin County, CA
4. Polio Purple Pinkie Trail Run
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Past DateMay 4, 2024Saturday
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10K, 5K trail run
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Reno, NV
175 miles point to pointWashoe County, NV
5. Red Hills Ramble
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Past DateMay 4, 2024Saturday
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30K, 15K, 10K trail run
Virtual OptionMore Information
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Tuolumne, CA
100 miles point to pointTuolumne County, CA
6. Dirty Secret Trail Run
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Past DateMay 11, 2024Saturday
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10.3M, 5.8M trail run
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Cool, CA
100 miles point to pointEl Dorado County, CA
7. Grizzly Peak Trail Run
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Past DateMay 11, 2024Saturday
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50K, 26.2M, 30K, 13.1M, 10K trail run | kids run
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Berkeley, CA
16 miles point to pointAlameda County, CA
8. Muir Woods Marathon
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Past DateMay 11, 2024Saturday
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26.2M, 13.1M, 7M trail run
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Stinson Beach, CA
33 miles point to pointMarin County, CA
9. Nitro Trail Half Marathon
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Past DateMay 11, 2024Saturday
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13.1M, 10K, 5K trail run
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San Pablo, CA
23 miles point to pointContra Costa County, CA
10. Pathways Run
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Past DateMay 11, 2024Saturday
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1M run | 10K, 5K trail run
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Los Altos Hills, CA
22 miles point to pointSanta Clara County, CA
11. Quicksilver Endurance Runs
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Past DateMay 11, 2024Saturday
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100K, 50K trail run
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San Jose, CA
19 miles point to pointSanta Clara County, CA
12. Race For Open Space
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Past DateMay 11, 2024Saturday
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35K, 25K, 12K, 1M trail run
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Carmel-By-The-Sea, CA
79 miles point to pointMonterey County, CA
13. Sasquatch Trail Run
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Past DateMay 11, 2024Saturday
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5K trail run | kids run
Virtual OptionMore Information
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Woodlake, CA
181 miles point to pointTulare County, CA
14. Trail Run at Sly Park
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Past DateMay 11, 2024Saturday
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50K, 26.2M, 18M, 13.1M, 8.5M, 10K, 5K trail run
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Pollock Pines, CA
109 miles point to pointEl Dorado County, CA
15. Waves & Whales 5K Trail Run
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Past DateMay 11, 2024Saturday
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5K trail run
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Point Arena, CA
120 miles point to pointMendocino County, CA
16. 13 Mile Trail Race Top Down
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Past DateMay 18, 2024Saturday
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13.1M trail run
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San Jose, CA
19 miles point to pointSanta Clara County, CA
17. Animal Run 5K/10K Canicross
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Past DateMay 18, 2024Saturday
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10K, 5K trail run
Virtual OptionMore Information
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Richmond, CA
22 miles point to pointContra Costa County, CA
18. Bishop High Sierra Ultras
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Past DateMay 18, 2024Saturday
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100K, 50M, 53K, 20M, 6K trail run
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Bishop, CA
197 miles point to pointInyo County, CA
19. Pacifica Foothills Trail Run
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Past DateMay 18, 2024Saturday
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30K, 13.1M, 10K trail run
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Pacifica, CA
22 miles point to pointSan Mateo County, CA
20. Silver State 50-mile and 50K Endurance Runs
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Past DateMay 18, 2024Saturday
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50M, 50K, 13.1M trail run
More Information
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Reno, NV
175 miles point to pointWashoe County, NV
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.
