Upcoming Half Marathons in California

Endurance Grid lists two hundred eighty-nine half marathons in California, from September 2026 to August 2027 across 77 cities.

289
Races
77
Cities
16
Sports

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Running races in California

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Frequently Asked Questions

How many half marathons are in California?
Endurance Grid's Race Calendar lists 289 upcoming half marathons in California, in 77 cities, from September 2026 to August 2027.
How long is a half marathon?
A half marathon is a running race where athletes run 13.1 miles long (21.1 kilometers) for time.
Which California cities host half marathons?
Half marathons in California are held in Long Beach, Los Angeles, San Diego, Sacramento, San Francisco, Canoga Park, San Mateo, Castro Valley, Huntington Beach, and San Jose, plus 67 other cities.
What other race distances are available in California?
Beyond half marathon, California races cover a wide range of distances. California also has 5Ks, 10Ks, and marathons for running races. Additionally, Endurance Grid's Race Calendar also covers other sports, with adventure, aquabike, road cycling, duathlon, gravel, HYROX, mountain bike, obstacle course, paddle, rucking, running, swimming, swimrun, trail running, triathlon, and ultra races of various distances.