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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

🚀Boosted

La Jolla Half Marathon & 5K

San Diego, California
16 May 26
$53.34 - $127.40

Offer

18% OFF with code: FINDARLEP

🚀Boosted

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

Yosemite Half Marathon

Bass Lake, California
09 May 26
Free - $170.60

La Jolla Half Marathon & 5K

San Diego, California
16 May 26
$53.34 - $127.40

Offer

18% OFF with code: FINDARLEP

The 2026 Hoag OC Marathon Running Festival (Expo Registration)

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

Beer City Half™ Sacramento

Sacramento, California
03 May 26
Free - $93.75

Beer City Half™ San Jose

San Jose, California
30 May 26
$27.50 - $101.70
Showing 1-6 of 6 results