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Ultra Marathons found in California in Summer
View all ↓Ultra Marathons in California in Summer 2026
Find A Race is the US's favourite event listings site. Check out our list of Summer 2026 Ultra Marathons in California below.
Race Calendar: Ultra Marathons found in Summer
🚀Boosted
San Lorenzo River Trail Run
Santa Cruz, California
Sat 11 Jul 26
Free - $85.80
🚀Boosted
Shadow of the Giants 50k & 20k Run
Fish Camp, California
Sat 06 Jun 26
$85.80 - $138.80
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Shadow of the Giants 50k & 20k Run
Fish Camp, California
Sat 06 Jun 26
$85.80 - $138.80
San Lorenzo River Trail Run
Santa Cruz, California
Sat 11 Jul 26
Free - $85.80
San Francisco Marathon
San Francisco
Sat 25 Jul 26 - Sun 26 Jul 26
$77.19 - $421.57
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