Upcoming Half Marathons in California

Endurance Grid lists two hundred ninety-three half marathons in California, from October 2026 to April 2028 across 79 cities.

293
Races
79
Cities
15
Sports

Running races in California

Your next race is out there. Go find it.

All California Running Races

Frequently Asked Questions

How many half marathons are in California?
Endurance Grid's Race Calendar lists 293 upcoming half marathons in California, in 79 cities, from October 2026 to April 2028.
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, Castro Valley, Huntington Beach, Oakland, and San Jose, plus 69 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, HYROX, mountain bike, obstacle course, paddle, rucking, running, swimming, swimrun, trail running, triathlon, and ultra races of various distances.