Half-Marathon races in California, United States — 2026 running calendar

Sep

06

Pirates Plunder – 5K, 10K, 10-miler, and Half Marathon

Long Beach, California, United States

$45.00 - $50.00

Running

5K 10K 16.1K Half-Marathon

Sep

06

Diablo Trail Run

Clayton, California, United States

Free - $100.00

Trail running Running

6.4K 16.1K Half-Marathon Marathon +2

Sep

11

The Honey Badger Half (& 10K/5K)

Santa Venetia, California, United States

$45.00 - $105.00

Running Trail running

5K 10K Half-Marathon +2

Sep

12

The Running Fence Run: A Run of Freedom- Celebrating Christo's 1976 "Running Fence” art project

Bloomfield, California, United States

$60.00 - $160.00

Running

Marathon Half-Marathon 10K 5K

Sep

12

National Chocolate Day: Run for Chocolates 5K/10K/13.1 SAN DIEGO

San Diego, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Sep

12

National Chocolate Day: Run for Chocolates 5K/10K/13.1 SACRAMENTO

Sacramento, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Sep

12

National Chocolate Day: Run for Chocolates 5K/10K/13.1 SAN FRANCISCO

San Francisco, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Sep

12

Beer City Half™ Bishop Ranch

San Ramon, California, United States

$32.50 - $105.00

Running

Half-Marathon 10K 5K 1.6K +1

Sep

12

National Chocolate Day: Run for Chocolates 5K/10K/13.1 LOS ANGELES

Los Angeles, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Sep

13

Seasonal Confusion 5K. 10K. Half Marathon by Califlow Runs

Long Beach, California, United States

$48.99 - $62.99

Running

5K 10K Half-Marathon

Sep

19

Bayside Saved by the Bell 5K, 10K & Half Marathon

Canoga Park, California, United States

$34.99

Running

5K 10K Half-Marathon

Sep

19

Run for Coffee 5k / 10k / 13.1 - Roseville

Rocklin, California, United States

$35.00 - $45.00

Running

5K 10K Half-Marathon