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Ultra Marathons found in California in Summer

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Ultra Marathons in California in Summer 2025

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

Race Calendar: Ultra Marathons found in Summer

🚀Boosted

San Lorenzo River Trail Run

Santa Cruz, California
12 Jul 25
Free - $85.80
🚀Boosted

Los Angeles Frontrunners Pride Run 2025

Los Angeles, California
15 Jun 25
$43.40 - $48.70
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Hobby Joggers Race Series

Temecula, California
01 Jan 25 - 31 Dec 25
Free - $27.50

Cinderella Trail Run

Oakland, California
01 Jun 25
Free - $85.80

Holcomb Valley Trail Run

Big Bear Lake, San Bernardino
14 Jun 25

Los Angeles Frontrunners Pride Run 2025

Los Angeles, California
15 Jun 25
$43.40 - $48.70

San Lorenzo River Trail Run

Santa Cruz, California
12 Jul 25
Free - $85.80

Redwood (Summer) Trail Run

Oakland, California
16 Aug 25
Free - $85.80

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
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