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Marathons found in California in December
View all ↓Marathons in California in December 2025
Find A Race is the US's favourite event listings site. Check out our list of December 2025 Marathons in California below.
Race Calendar: Marathons found in December
🚀Boosted
Run Against Breast Cancer 5K/10K/13.1 LOS ANGELES
Santa Monica, California
13 Dec 25
$32.80 - $48.70
🚀Boosted
Run for Mental Health 5K/10K/13.1 LOS ANGELES
Los Angeles, California
13 Dec 25
$32.80 - $48.70
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Run Against Breast Cancer 5K/10K/13.1 LOS ANGELES
Santa Monica, California
13 Dec 25
$32.80 - $48.70
Run for Mental Health 5K/10K/13.1 LOS ANGELES
Los Angeles, California
13 Dec 25
$32.80 - $48.70
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