California

California Half Marathon Calendar

Browse all California Half Marathons in 2024-2025 by month and by city below. For each race, you’ll find the history of the half marathon and the course, the most recent year’s course maps, elevation profiles, runner reviews, pricing, and how to sign up.

We dedicated dozens of hours every month searching for races to include in the California Half Marathons calendar. If you happen to see any half marathon not included, contact us at info@halfmarathons.net to submit your race.

California Half Marathon Calendar

Dates may be subject to alteration, please check race website.

Filter California Half Marathons

Filter California Half Marathons

Super Sunday 5k Half Crazy Half Marathon logo
February 8, 2025
100-500 runners
Irvine, California
February 22, 2025
1-100 runners
Pacifica, California
February 22, 2025
100-500 runners
Santa Rosa, California
Ventura Marathon & Half Marathon logo
February 23, 2025
1,000-10,000 runners
Ventura, California
SOCAL Marathon Half Marathon 10k & 5k logo
March 1, 2025
100-500 runners
Huntington Beach, California
March 2, 2025
1-100 runners
Walnut Creek, California
A Run Through Redlands logo
March 2, 2025
1-100 runners
Redlands, California
March 2, 2025
1,000-10,000 runners
Livermore, California
A Run Through Redlands Half Marathon, 10K & 5K logo
March 2, 2025
100-500 runners
Redlands, California
Napa Valley Marathon & Half Marathon logo
March 2, 2025
1-100 runners
Calistoga, California
Bayshore Triathlon Half Marathon logo
March 8, 2025
100-500 runners
Long Beach, California
Mermaid Half Marathon 10k & 5k San Diego logo
March 8, 2025
100-500 runners
San Diego, California
March 22, 2025
100-500 runners
Santa Clarita, California
Enviro-Sports logo
March 22, 2025
1-100 runners
Saint Helena, California
March 23, 2025
500-1000 runners
Modesto, California
March 23, 2025
1,000-10,000 runners
Oakland, California
Pacific Coast Trail Runs logo
March 29, 2025
1-100 runners
Los Osos, California
Bakersfield Marathon logo
March 30, 2025
100-500 runners
Bakersfield, California
Troy’s California Trail Runs logo
April 5, 2025
1-100 runners
San Jose, California
April 6, 2025
100-500 runners
Hemet, California

Running in California

FAQ

What are the most popular California half marathons?
The three most popular California half marathons are the Rock ‘n’ Roll San Diego Half Marathon with over 10,000 runners, the Napa to Sonoma Wine Country Half Marathon with over 6,800 runners, and the Monterey Bay Half Marathon with over 6,300 runners.
What’s the best half marathons in California for beginners in 2024?
There’s a ton of competition for the best California half marathons for beginners. But, we most frequently recommend the OC Marathon & Half Marathon, the Napa Valley Half Marathon, the Rock ‘n’ Roll San Diego Half Marathon and the Surf City Half Marathon as well produced races with beautiful courses and big crowds. If you’re willing to travel, here’s our full list of best half marathons for beginners.
What’s the best month to run a half marathon in California?
March and April are the most popular months for California half marathons.
What are the most popular cities to run California half marathons?
San FranciscoSan Diego and Los Angeles are the most popular California half marathons cities.
What are the best California half marathons?
Every year, we rank our favorite and most scenic California half marathons. This year, we rated San Diego Beach & Bay, the OC Half MarathonSanta Rosa Half Marathon, and the Surf City Marathon amongst our favorites.

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