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Marathons found in California in October

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Marathons in California in October 2025

Find A Race is the US's favourite event listings site. Check out our list of October 2025 Marathons in California below.

Race Calendar: Marathons found in October

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Long Beach, CA Galloway Training Program

Long Beach, California
07 Jun 25 - 04 Oct 25
$100.00 - $120.00
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LOOK GOOD FEEL GOOD SAN LEANDRO 5K, 10, HALF MARATHON & MARATHON

San Leandro, California
11 Oct 25
$34.00 - $133.50
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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

Long Beach, CA Galloway Training Program

Long Beach, California
07 Jun 25 - 04 Oct 25
$100.00 - $120.00

LOOK GOOD FEEL GOOD SAN LEANDRO 5K, 10, HALF MARATHON & MARATHON

San Leandro, California
11 Oct 25
$34.00 - $133.50

Bizz Johnson

Susanville, California
11 Oct 25 - 12 Oct 25
$59.30 - $107.00

2025 Humboldt Redwoods Marathon, Half Marathon, 5K

Weott, California
12 Oct 25
$64.85 - $154.95
Showing 1-5 of 5 results