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Ultra Marathons found in California in October
View all ↓Ultra Marathons in California in October 2025
Find A Race is the US's favourite event listings site. Check out our list of October 2025 Ultra Marathons in California below.
Race Calendar: Ultra Marathons found in October
🚀Boosted
Finish The Ride and Finish The Run Santa Clarita
Valencia, California
26 Oct 25
$11.60 - $96.40
🚀Boosted
Ruth Anderson Memorial Endurance Run
San Francisco, California
11 Oct 25
Free
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Hobby Joggers Race Series
Temecula, California
01 Jan 25 - 31 Dec 25
Free - $27.50
Ruth Anderson Memorial Endurance Run
San Francisco, California
11 Oct 25
Free
Finish The Ride and Finish The Run Santa Clarita
Valencia, California
26 Oct 25
$11.60 - $96.40
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
Cycle of Hope
Dublin, California
19 Oct 25
Free - $100.00
Showing 1-5 of 5 results