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Half Marathons found in California in December

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Half Marathons in California in December 2025

Find A Race is the US's favourite event listings site. Check out our list of December 2025 Half Marathons in California below.

Race Calendar: Half Marathons found in December

πŸš€Boosted

Run Against Breast Cancer 5K/10K/13.1 SAN DIEGO

San Diego, California
Sat 13 Dec 25
$32.80 - $52.94
πŸš€Boosted

Holly Jolly 5K, 10K, and Half Marathon

Santa Monica, California
Sat 20 Dec 25
$26.97 - $41.81
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New Year's Run 5K/10K/13.1 SAN DIEGO

San Diego, California
Sat 27 Dec 25
$32.80 - $48.70

New Year's Run 5K/10K/13.1 SAN FRANCISCO

San Francisco, California
Sat 27 Dec 25
$32.80 - $52.94

The Final Countdown 5k, 10k, 15k, Half Marathon

Long Beach, Los Angeles
Sat 27 Dec 25
$22.99 - $37.99

New Year's Run 5K/10K/13.1 LOS ANGELES

Los Angeles, California
Sat 27 Dec 25
$32.80 - $48.70

Countdown to the Finish – 5K, 10K, 10-Miler, Half Marathon

Long Beach, California
Sun 28 Dec 25
$26.97 - $41.81

Run In The New Year 5k/10K/Half Marathon

Huntington Beach, California
Sun 28 Dec 25
$36.00 - $82.50

Last Miles of 2025- 5K, 10K, and Half Marathon

Santa Monica, California
Sun 28 Dec 25
$31.73 - $42.33

Last Dash Before Midnight 5K, 10K, & Half Marathon

Long Beach, California
Wed 31 Dec 25
$32.79 - $42.33
Showing 41-48 of 48 results
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