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

Jun

06

SuperHeroes Run 5K/10K/13.1 SAN DIEGO

San Diego, California, United States

Running

5K 10K Half-Marathon 1.6K +2

Jun

06

71st Annual Fontana Days Run

Fontana, California, United States

Running

Half-Marathon 5K 1K

Jun

06

Run for Breast Cancer 5K/10K/13.1 Los Angeles

Los Angeles, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

Jun

06

Run for Breast Cancer 5K/10K/13.1 Sacramento

Sacramento, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

Jun

06

SuperHeroes Run 5K/10K/13.1 LOS ANGELES

Los Angeles, California, United States

Running

5K 10K Half-Marathon 1.6K +2

Jun

06

Run for Breast Cancer 5K/10K/13.1 San Francisco

San Francisco, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

Jun

06

Race Through California 1M, 5K, 10K, 13.1, 26.2 - Now Only $20!

Los Angeles, California, United States

$20.00

Running

1.6K 5K 10K Half-Marathon +1

May

31

Blue Moon 5K. 10K. Half Marathon by Califlow Runs

Long Beach, California, United States

Running

5K 10K Half-Marathon

May

31

The Great White Chase – 5K, 10K, 10M, and Half Marathon

Long Beach, California, United States

Running

5K 10K 15K Half-Marathon

May

25

Laguna Hills Memorial Day Half Marathon, 5K & 10K

Laguna Hills, California, United States

Running

Half-Marathon 10K 5K

May

24

Sweet Life - Pineapple Run 5K. 10K. Half Marathon by Califlow Runs

Long Beach, California, United States

Running

5K 10K Half-Marathon 1.6K

May

23

The Valley Race – 5k, 10k, and Half Marathon

Van Nuys, California, United States

Running

5K 10K Half-Marathon