0004

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
Feature your event at the top of the results

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