Discover The Best California Ultramarathons
Explore our comprehensive list of ultramarathons in California to find the perfect race for you.
upcoming ultramarathons in California
October 4, 2026
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Huntington Beach
October 8, 2026
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October 10, 2026
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San Francisco
October 10, 2026
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Auburn
October 11, 2026
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October 16, 2026
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Lake Tahoe
October 17, 2026
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Geyserville
October 17, 2026
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San Diego
October 17, 2026
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Redding
October 17, 2026
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Julian
January 9, 2027
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San Diego