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Ultra Marathons found in California in April

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Ultra Marathons in California in April 2026

Find A Race is the US's favourite event listings site. Check out our list of April 2026 Ultra Marathons in California below.

Race Calendar: Ultra Marathons found in April

🚀Boosted

Horseshoe Lake Trail Run

La Honda, California
18 Apr 26
Free - $85.80
🚀Boosted

Mountains 2 Beach Marathon and Half

Ventura, California
18 Apr 26 - 19 Apr 26
$22.19 - $186.49
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Silver Moon Race: Kings River

Reedley, California
04 Apr 26 - 05 Apr 26
$85.80 - $234.20

SPASM Lake Chabot Trail Run

Castro Valley, California
11 Apr 26
Free - $85.80

Bedrock Valley Trail Runs

Hemet, California
11 Apr 26 - 12 Apr 26
$16.90 - $112.30

Horseshoe Lake Trail Run

La Honda, California
18 Apr 26
Free - $85.80

Badwater Salton Sea, presented by Mount to Coast

Borrego Springs, California
18 Apr 26 - 19 Apr 26
$394.75

Mountains 2 Beach Marathon and Half

Ventura, California
18 Apr 26 - 19 Apr 26
$22.19 - $186.49
Showing 1-6 of 6 results