0048
Half Marathons found in California in December
View all ↓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
🚀Boosted
ZombieRunner Quarry Lakes
Fremont, California
Sat 06 Dec 25
Free - $80.50
🚀Boosted
Winter Runderland 5K, 10K, & Half Marathon
Long Beach, California
Sun 07 Dec 25
$16.90 - $52.93
Feature your event at the top of the results
Want more bookings?
Our most effective tool for getting more people to your race is a ‘Boost’. Boosts put your event to the top of the search results.
Typically a Boosted event gets 8x as many Impressions, 4x as many Clicks and generates 4x more revenue than a standard event listing.
Choose to Boost your event on the landing page which best suits your target audience and budget. For example, ‘10k’s near San Francisco or ‘marathons in April’. Our team can advise on scheduling promotions to optimize performance.
Prices start at $100 per month. The most popular categories sell out in advance so booking early is recommended.
Get in touch
Hi, I'm Rosie from findarace.com!
If you're looking to boost your event or have any questions, please fill in your details below and I'll be in touch to help you.
Great Race | Virtual Edition
Los Angeles, California
Sat 01 Nov 25 - Tue 30 Jun 26
$49.99
ZombieRunner Quarry Lakes
Fremont, California
Sat 06 Dec 25
Free - $80.50
Season's Greetings 5k, 10k, 15k, Half Marathon
Long Beach, Los Angeles
Sat 06 Dec 25
$25.00
Winter Runderland 5K, 10K, & Half Marathon
Long Beach, California
Sun 07 Dec 25
$16.90 - $52.93
36th Annual Lopers Club Holiday Classic Half Marathon, 10K, and 5K
Loma Linda, California
Sun 07 Dec 25
$11.60 - $91.10
Jingle Bell Jog – 5K, 10K, 10-Miler, Half Marathon
Long Beach, California
Sun 07 Dec 25
$26.97 - $41.81
Santa To The Sea 1/2 Marathon, 1/4 Marathon & 5K
Oxnard, California
Sat 13 Dec 25 - Sun 14 Dec 25
$11.60 - $138.79
Reindeer Run 5k, 10k, 15k, Half Marathon
Van Nuys, Los Angeles
Sat 13 Dec 25
$25.00
Run Against Breast Cancer 5K/10K/13.1 SACRAMENTO
Sacramento, California
Sat 13 Dec 25
$32.80 - $48.70
Run Against Breast Cancer 5K/10K/13.1 SAN DIEGO
San Diego, California
Sat 13 Dec 25
$32.80 - $52.94
Run Against Breast Cancer 5K/10K/13.1 SAN FRANCISCO
San Francisco, California
Sat 13 Dec 25
$32.80 - $52.94
Run Against Breast Cancer 5K/10K/13.1 PHOENIX
Glendale, Arizona
Sat 13 Dec 25
$32.80 - $48.70
Run for Mental Health 5K/10K/13.1 LOS ANGELES
Los Angeles, California
Sat 13 Dec 25
$32.80 - $52.94
Run for Mental Health 5K/10K/13.1 PHOENIX
Glendale, Arizona
Sat 13 Dec 25
$32.80 - $48.70
Run for Mental Health 5K/10K/13.1 SACRAMENTO
Sacramento, California
Sat 13 Dec 25
$32.80 - $52.94
The Jingle Bell Dash 5K, 10K and Half Marathon
Huntington Beach, California
Sat 13 Dec 25
$49.75 - $57.17
Run for Mental Health 5K/10K/13.1 SAN DIEGO
San Diego, California
Sat 13 Dec 25
$32.80 - $52.94
Run Against Breast Cancer 5K/10K/13.1 LOS ANGELES
Santa Monica, California
Sat 13 Dec 25
$32.80 - $52.94
Run for Mental Health 5K/10K/13.1 SAN FRANCISCO
San Francisco, California
Sat 13 Dec 25
$32.80 - $52.94
Merry Miles 5K, 10K, and Half Marathon
Long Beach, California
Sat 13 Dec 25
$31.73 - $42.33
Holiday Fun 5k, 10k, 15k, Half Marathon
Los Angeles
Sun 14 Dec 25
$25.00
Santa's Toy Trot – 5K, 10K, 10-Miler, Half Marathon
Long Beach, California
Sun 14 Dec 25
$26.97 - $41.81
Run, Run Rudolph 5K,10K, and Half Marathon
Santa Monica, California
Sun 14 Dec 25
$31.73 - $42.33
Santa Hustle Roseville
Roseville, California
Sun 14 Dec 25
$27.49 - $96.39
Holiday Half Marathon, 10K, 5K, Kid's 1-Mile
Goleta, California
Sat 20 Dec 25
$22.20 - $75.20
Reindeer Run 5k, 10k, 15k, Half Marathon
Long Beach, Los Angeles
Sat 20 Dec 25
$25.00 - $40.00
San Diego Holiday Half Marathon & 5K
San Diego, California
Sat 20 Dec 25
$64.58 - $149.98
Holly Jolly 5K, 10K, and Half Marathon
Santa Monica, California
Sat 20 Dec 25
$26.97 - $41.81
Clueless & Breathless 5K, 10K & Half
Canoga Park, California
Sat 20 Dec 25
$34.99
Santa’s Reindeer Run - 5K, 10K, and Half Marathon
Huntington Beach, California
Sat 20 Dec 25
Free - $69.89
Reindeer Run 5k, 10k, 15k, Half Marathon
Riverside
Sun 21 Dec 25
$22.99 - $37.99
Chasing Santa – 5K, 10K, 10-Miler, Half Marathon
Long Beach, California
Sun 21 Dec 25
$26.97 - $41.81
Happy Holidays 5k, 10k, 15k, Half Marathon
Long Beach, Los Angeles
Wed 24 Dec 25
$22.99 - $37.99
Twas the Night Before -Christmas Eve 5K, 10K, & Half Marathon
Santa Monica, California
Wed 24 Dec 25
$31.73 - $42.33
A Merry Christmas Run 5K/10K/13.1 SACRAMENTO
Sacramento, California
Sat 27 Dec 25
$32.80 - $52.94
A Merry Christmas Run 5K/10K/13.1 LOS ANGELES
Los Angeles, California
Sat 27 Dec 25
$32.80 - $48.70
A Merry Christmas Run 5K/10K/13.1 SAN DIEGO
San Diego, California
Sat 27 Dec 25
$32.80 - $48.70
A Merry Christmas Run 5K/10K/13.1 SAN FRANCISCO
San Francisco, California
Sat 27 Dec 25
$32.80 - $52.94
Ring Out the Old – 5K, 10K, Half Marathon
Encino, California
Sat 27 Dec 25
$26.97 - $41.81
New Year's Run 5K/10K/13.1 SACRAMENTO
Sacramento, California
Sat 27 Dec 25
$32.80 - $52.94
Showing 1-40 of 48 results
