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Half Marathons found in California in January

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Half Marathons in California in January 2026

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

Race Calendar: Half Marathons found in January

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Brazen New Year's Day 2026

Castro Valley, California
01 Jan 26
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Happy New Year 2026 - 5K, 10K, and Half Marathon

Long Beach, California
01 Jan 26
$32.79 - $42.33
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Happy New Year 2026 - 5K, 10K, and Half Marathon

Long Beach, California
01 Jan 26
$32.79 - $42.33

Brazen New Year's Day 2026

Castro Valley, California
01 Jan 26

Dia De Los Reyes Magos - Bakersfield

Bakersfield, California
03 Jan 26
$28.00 - $69.34

Chase the Falling Stars - Quadrantid Meteor Shower 5K 10K & Half Marathon

Santa Monica, California
03 Jan 26
$32.79 - $42.33

Grievances & Gratitude Run Let Go, Run Free, Embrace the Positive! 5K, 10K, and Half Marathon

Long Beach, California
04 Jan 26
$32.79 - $38.09

Dia De Los Reyes Magos - Fresno

Fresno, California
04 Jan 26
$19.00 - $102.20

Citrus Heritage Run

Riverside, California
10 Jan 26
$22.95 - $76.33

San Diego 50 & Trail Runs

Escondido, California
10 Jan 26
$16.90 - $144.10
Showing 1-8 of 8 results