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Half Marathons found in California in September
View all ↓Half Marathons in California in September 2026
Find A Race is the US's favourite event listings site. Check out our list of September 2026 Half Marathons in California below.
Race Calendar: Half Marathons found in September
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Mammoth Bar Trail Runs
Auburn, California
Sun 06 Sep 26
$52.94 - $74.14
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Mammoth Bar Trail Runs
Auburn, California
Sun 06 Sep 26
$52.94 - $74.14
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