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Upcoming Half Marathons Near Livermore, CA

Looking for a half marathon in Livermore, California? Browse the most comprehensive Livermore half marathon calendar with each race history, course description, difficulty rating, finisher ranges, scenery, and what the race is perfect for like family-friendly or lots of crowd support.

You’ll also be able to find must-know race logistics like pricing, start time, and course maps.

Half marathons are always coming and going. If you don’t see a race on the Livermore half marathon calendar, you can contact us at [email protected].

Filter California Half Marathons

Filter California Half Marathons

December 27, 2025
500-1000 runners
Castro Valley, California
January 1, 2026
100-500 runners
Castro Valley, California
Troy’s California Trail Runs logo
January 3, 2026
1-100 runners
San Jose, California
MLK Freedom Run logo
January 17, 2026
1-100 runners
San Leandro, California
Mt. Umunhum Trail Conquest Marathon 30k Half Marathon 7M & 5k logo
February 7, 2026
1-100 runners
San Jose, California
March 1, 2026
1,000-10,000 runners
Livermore, California
April 11, 2026
1-100 runners
Castro Valley, California
May 30, 2026
1-100 runners
San Jose, California
Lake Chabot Trail Challenge Half Marathon & 5K
June 7, 2026
100-500 runners
Castro Valley, California
June 7, 2026
1,000-10,000 runners
Fremont, California
Skyline 50k logo
August 2, 2026
500-1000 runners
Castro Valley, California
August 15, 2026
100-500 runners
Fremont, California
September 6, 2026
1-100 runners
Clayton, California
Rock ‘n’ Roll San Jose Half Marathon & 10k logo
October 4, 2026
1,000-10,000 runners
San Jose, California
Beer City Half Bishop Ranch logo
October 25, 2026
1-100 runners
San Ramon, 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.

Which months can I run a half marathon in California?

You can run a half marathon in California in January, February, April, May, June, July, August, September, October, November, and December.

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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