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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

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Run for Mental Health 5K/10K/13.1 LOS ANGELES

Los Angeles, California
13 Dec 25
$32.80 - $48.70
πŸš€Boosted

Clueless & Breathless 5K, 10K & Half

Canoga Park, California
20 Dec 25
$34.99
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ZombieRunner Quarry Lakes

Fremont, California
06 Dec 25
Free - $80.50

Winter Runderland 5K, 10K, & Half Marathon

Long Beach, California
07 Dec 25
$31.73 - $42.33

36th Annual Lopers Club Holiday Classic Half Marathon, 10K, and 5K

Loma Linda, California
07 Dec 25
$11.60 - $80.50

Santa To The Sea 1/2 Marathon, 1/4 Marathon & 5K

Oxnard, California
13 Dec 25 - 14 Dec 25
$11.60 - $96.39

Run Against Breast Cancer 5K/10K/13.1 SACRAMENTO

Sacramento, California
13 Dec 25
$32.80 - $48.70

Run Against Breast Cancer 5K/10K/13.1 LOS ANGELES

Santa Monica, California
13 Dec 25
$32.80 - $48.70

The Jingle Bell Dash 5K, 10K and Half Marathon

Huntington Beach, California
13 Dec 25
$42.33 - $49.75

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

San Diego, California
13 Dec 25
$32.80 - $48.70

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

San Francisco, California
13 Dec 25
$32.80 - $48.70

Run for Mental Health 5K/10K/13.1 LOS ANGELES

Los Angeles, California
13 Dec 25
$32.80 - $48.70

Run for Mental Health 5K/10K/13.1 PHOENIX

Glendale, Arizona
13 Dec 25
$32.80 - $48.70

Run for Mental Health 5K/10K/13.1 SACRAMENTO

Sacramento, California
13 Dec 25
$32.80 - $48.70

Run for Mental Health 5K/10K/13.1 SAN DIEGO

San Diego, California
13 Dec 25
$32.80 - $48.70

Run Against Breast Cancer 5K/10K/13.1 PHOENIX

Glendale, Arizona
13 Dec 25
$32.80 - $48.70

Run for Mental Health 5K/10K/13.1 SAN FRANCISCO

San Francisco, California
13 Dec 25
$32.80 - $48.70

Run, Run Rudolph 5K,10K, and Half Marathon

Santa Monica, California
14 Dec 25
$31.73 - $42.33

Merry Miles 5K, 10K, and Half Marathon

Long Beach, California
14 Dec 25
$31.73 - $42.33

Santa's Toy Trot – 5K, 10K, 10 Miler, and Half Marathon

Long Beach, California
14 Dec 25
$26.97 - $41.81

Santa Hustle Roseville

Roseville, California
14 Dec 25
$22.19 - $80.49

Holiday Half Marathon, 10K, 5K, Kid's 1-Mile

Goleta, California
20 Dec 25
$27.50 - $64.60

Holly Jolly 5K, 10K, and Half Marathon

Santa Monica, California
20 Dec 25
$26.97 - $41.81

Clueless & Breathless 5K, 10K & Half

Canoga Park, California
20 Dec 25
$34.99

San Diego Holiday Half Marathon & 5K

San Diego, California
20 Dec 25
$58.18 - $128.63

Twas the Night Before -Christmas Eve 5K, 10K, & Half Marathon

Santa Monica, California
24 Dec 25
$31.73 - $42.33

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

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

A Merry Christmas Run 5K/10K/13.1 SAN DIEGO

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

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

San Francisco, California
27 Dec 25
$32.80 - $48.70

A Merry Christmas Run 5K/10K/13.1 SAN FRANCISCO

San Francisco, California
27 Dec 25
$32.80 - $48.70

Ring Out the Old – 5K, 10K, and Half Marathon

Encino, California
27 Dec 25
$26.97 - $41.81

A Merry Christmas Run 5K/10K/13.1 LOS ANGELES

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

New Year's Run 5K/10K/13.1 SACRAMENTO

Sacramento, California
27 Dec 25
$32.80 - $48.70

A Merry Christmas Run 5K/10K/13.1 SACRAMENTO

Sacramento, California
27 Dec 25
$32.80 - $48.70

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

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

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

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

Countdown to the Finish – 5K, 10K, 10M, and Half Marathon

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

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

Huntington Beach, California
28 Dec 25
$36.00 - $77.00

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

Long Beach, California
31 Dec 25
$32.79 - $42.33
Showing 1-37 of 37 results