Discover The Best California Ultramarathons
Explore our comprehensive list of ultramarathons in California to find the perfect race for you.
upcoming ultramarathons in California
May 1, 2027
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Santa Clarita
May 8, 2027
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Berkeley
May 23, 2027
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Walnut Creek
June 5, 2027
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San Diego
June 5, 2027
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Oakland
June 5, 2027
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June 26, 2027
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Auburn
July 10, 2027
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Santa Cruz
August 1, 2027
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Castro Valley
