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.
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
Race Size
Difficulty
Scenery
Type
Perfect For
Distances
Filter California Half Marathons
Race Size
Difficulty
Scenery
Type
Perfect For
Distances
Featured Race
August 24, 2025
1,000-10,000 runners
Santa Rosa, California
- 10K, 5k, Half Marathon, Marathon, Trail
Featured Race
July 20, 2025
500-1000 runners
San Francisco, California
- 5k, Half Marathon, Road
Featured Race
May 4, 2025
10,000+ runners
Costa Mesa, California
- Half Marathon, Marathon, Road
April 26, 2025
1-100 runners
Mill Valley, California
- 10K, Half Marathon, Trail
April 27, 2025
100-500 runners
Napa, California
- 5k, Half Marathon, Road
May 3, 2025
1-100 runners
Folsom, California
- 10K, Half Marathon, Trail
May 3, 2025
1-100 runners
San Jose, California
- Half Marathon, Trail
May 4, 2025
10,000+ runners
Costa Mesa, California
- Half Marathon, Marathon, Road
May 4, 2025
100-500 runners
Windsor, California
- 10K, 5k, Half Marathon, Road
May 4, 2025
1,000-10,000 runners
Oakland, California
- Half Marathon, Trail
May 4, 2025
100-500 runners
Long Beach, California
- 10K, 5k, Half Marathon, Trail
May 4, 2025
1,000-10,000 runners
Santa Clarita, California
- 10K, 5k, Half Marathon, Trail
May 4, 2025
500-1000 runners
Arcata, California
- 10K, Half Marathon, Marathon, Trail
May 10, 2025
1-100 runners
Pinole, California
- 10K, 5k, Half Marathon, Trail
May 10, 2025
1-100 runners
Stinson Beach, California
- Half Marathon, Trail
May 10, 2025
1,000-10,000 runners
Bass Lake, California
- Half Marathon, Trail
May 10, 2025
1-100 runners
Stinson Beach, California
- Half Marathon, Marathon, Trail
May 10, 2025
1-100 runners
Berkeley, California
- 10K, Half Marathon, Marathon, Trail
May 10, 2025
1,000-10,000 runners
Santa Ynez, California
- Half Marathon, Road
May 10, 2025
1-100 runners
San Francisco, California
- Marathon, Road
May 11, 2025
1-100 runners
Long Beach, California
- 10K, 5k, Half Marathon, Trail
May 11, 2025
1-100 runners
San Diego, California
- 5k, Half Marathon, Marathon, Relay, Trail
May 11, 2025
100-500 runners
Long Beach, California
- 10K, 5k, Half Marathon, Trail
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 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?
