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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
Tahoe to Malibu Annual Challenge
Anywhere, California
Mon 01 Jan 24 - Wed 31 Dec 25
$53.75
🚀Boosted
5th Annual Dia de los Muertos 75 Mile Challenge!
livermore, California
Sat 13 Sep 25 - Sun 02 Nov 25
$32.80 - $54.00
Feature your event at the top of the results
Tahoe to Malibu Annual Challenge
Anywhere, California
Mon 01 Jan 24 - Wed 31 Dec 25
$53.75
5th Annual Dia de los Muertos 75 Mile Challenge!
livermore, California
Sat 13 Sep 25 - Sun 02 Nov 25
$32.80 - $54.00
Showing 1-2 of 2 results