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Half Marathons found in California in May

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Half Marathons in California in May 2026

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

Race Calendar: Half Marathons found in May

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La Jolla Half Marathon & 5K

San Diego, California
16 May 26
$48.05 - $106.24
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The 2026 Hoag OC Marathon Running Festival (Expo Registration)

Costa Mesa, California
02 May 26
$33.70 - $125.26
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The Hoag OC Marathon Running Festival

Costa Mesa, California
02 May 26
Free - $125.26

Yosemite Half Marathon

Bass Lake, California
09 May 26
Free - $170.60

La Jolla Half Marathon & 5K

San Diego, California
16 May 26
$48.05 - $106.24

The 2026 Hoag OC Marathon Running Festival (Expo Registration)

Costa Mesa, California
02 May 26
$33.70 - $125.26

Beer City Halfâ„¢ Sacramento

Sacramento, California
03 May 26
Free - $93.75
Showing 1-5 of 5 results