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Upcoming Half Marathons Near San Jose, CA

Browse all California Half Marathons in 2026 and 2027 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.

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May 30, 2026
1-100 runners
San Jose, California
May 30, 2026
100-500 runners
San Jose, California
May 31, 2026
500-1000 runners
San Jose, California
June 7, 2026
1,000-10,000 runners
Fremont, California
July 4, 2026
1-100 runners
Morgan Hill, California
August 15, 2026
100-500 runners
Fremont, California
Santa Cruz Trail Run 10K, Half Marathon, 30K logo
August 22, 2026
100-500 runners
Felton, California
August 30, 2026
100-500 runners
Woodside, California
SPASM Crystal Springs Trail Run in Long Beach, CA, Forested, Mountain Views, Creekside
August 30, 2026
100-500 runners
Woodside, California
September 20, 2026
1-100 runners
Los Gatos, California
September 27, 2026
1,000-10,000 runners
San Jose, California
Rock ‘n’ Roll San Jose Half Marathon & 10k logo
October 4, 2026
1,000-10,000 runners
San Jose, California
October 31, 2026
1-100 runners
San Jose, California
Women's Trail Run - Mermaid Series Logo
November 7, 2026
100-500 runners
Woodside, California
Zoom Turkey Trot Half Marathon 10k & 5k logo
November 26, 2026
100-500 runners
San Jose, California
November 28, 2026
100-500 runners
Fremont, California
December 5, 2026
100-500 runners
Fremont, California
December 12, 2026
100-500 runners
Saratoga, California
Woodside Ramble 50k 36k Half Marathon & 10k logo
December 19, 2026
100-500 runners
Woodside, California
January 17, 2027
100-500 runners
Woodside, 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 2026?

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 MarathonSanta Rosa Half Marathon, and the Surf City Marathon amongst our favorites.

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