April Ultras within 50 miles of San Jose, CA
1. 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
Santa Clara County, CA
2. 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
34 miles point to pointContra Costa County, CA
3. 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
19 miles point to pointAlameda County, CA
4. 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
15 miles point to pointSan Mateo County, CA
5. Sierra Azul Trail Challenge
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Apr 19, 2025Saturday
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50K, 26.2M, 20M, 13.1M, 7M, 5K trail run
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San Jose, CA
Santa Clara County, CA
6. Horseshoe Lake
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Past DateApr 21, 2024Sunday
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50K, 26.2M, 30K, 13.1M, 5M trail run | kids run
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La Honda, CA
17 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.