California

California Half Marathon Calendar

Browse all California Half Marathons in 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 dedicate  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 [email protected] to submit your race.

Filter California Half Marathons

Filter California Half Marathons

April 26, 2025
1-100 runners
Mill Valley, California
Napa Valley Women's Half Marathon & 5k logo
April 27, 2025
100-500 runners
Napa, California
May 3, 2025
1-100 runners
Folsom, California
Troy’s California Trail Runs logo
May 3, 2025
1-100 runners
San Jose, California
May 4, 2025
10,000+ runners
Costa Mesa, California
Windsor Run & Wine Half Marathon 10k & 5k logo
May 4, 2025
100-500 runners
Windsor, California
Bay Bridge Half Marathon logo
May 4, 2025
1,000-10,000 runners
Oakland, California
May 4, 2025
100-500 runners
Long Beach, California
Sombrero Half Marathon 10k & 5k logo
May 4, 2025
1,000-10,000 runners
Santa Clarita, California
Avenue of the Giants Marathon logo
May 4, 2025
500-1000 runners
Arcata, California
nitro trail logo
May 10, 2025
1-100 runners
Pinole, California
Enviro-Sports logo
May 10, 2025
1-100 runners
Stinson Beach, California
Yosemite Half Marathon
May 10, 2025
1,000-10,000 runners
Bass Lake, California
Enviro-Sports logo
May 10, 2025
1-100 runners
Stinson Beach, California
May 10, 2025
1-100 runners
Berkeley, California
Santa Barbara Wine Country Half Marathon logo
May 10, 2025
1,000-10,000 runners
Santa Ynez, California
Sunrise Marathon
May 10, 2025
1-100 runners
San Francisco, California
Run for the Rose logo
May 11, 2025
1-100 runners
Long Beach, California
May 11, 2025
1-100 runners
San Diego, California
May 11, 2025
100-500 runners
Long Beach, 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 2025?

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 Francisco, San 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 Marathon, Santa Rosa Half Marathon, and the Surf City Marathon amongst our favorites.

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