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Marathons found in California in September
View all ↓Marathons in California in September 2025
Find A Race is the US's favourite event listings site. Check out our list of September 2025 Marathons in California below.
Race Calendar: Marathons found in September
🚀Boosted
Running Fence Run - A Celebration of Freedom and Democracy
Cotati, California
13 Sep 25 - 03 Nov 26
$50.00 - $250.00
🚀Boosted
Diablo Trail Run
Clayton, California
07 Sep 25
Free - $85.80
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Pinkathon 2025 Virtual and In-Person Challenge for Breast Cancer!
Any Place in the World!, California
01 May 25 - 31 Oct 25
Free - $27.50
Diablo Trail Run
Clayton, California
07 Sep 25
Free - $85.80
National Chocolate Day: Run for Chocolates LOS ANGELES
Los Angeles, California
13 Sep 25
$32.80 - $48.70
Running Fence Run - A Celebration of Freedom and Democracy
Cotati, California
13 Sep 25 - 03 Nov 26
$50.00 - $250.00
Showing 1-4 of 4 results