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

Apr

10

Nature Made Great Race: Half Marathon, 5K, 10K, 15K, 10M, 1M

Agoura Hills, California, United States

$33.95 - $107.55

Trail running Running

Half-Marathon 10K 16.6K 15K +3

Apr

10

Run for Pb&J 5k/10k/13.1 San Francisco

San Francisco, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Apr

10

San Diego Beach & Bay Half Marathon

San Diego, California, United States

Free - $129.00

Running

Half-Marathon 10K 5.1K 5K +1

Apr

10

Run for Pb&J 5k/10k/13.1 Sacramento

San Francisco, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Apr

10

Run for Pb&J 5k/10k/13.1 San Diego

San Diego, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Apr

10

Run for Bagels 5K/10K/13.1 San Diego

San Diego, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Apr

10

Run for Bagels 5K/10K/13.1 Sacramento

Sacramento, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Apr

10

Run for Pb&J 5k/10k/13.1 Los Angeles

Los Angeles, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Apr

11

Beer City San Francisco

San Francisco, California, United States

$30.00 - $100.00

Running

Half-Marathon 10K 5K 1.6K +1

Apr

17

Alameda Island Running Festival

Alameda, California, United States

Free - $100.00

Running

1.6K Yoga on the patio - Presented by Breathing Room 8K Half-Marathon +2

Apr

17

Run for the Planet -An Earth Day Run by CaliFlow Runs - 5K, 10K, Half Marathon

Long Beach, California, United States

$25.00 - $48.99

Running

5K 10K Half-Marathon 1.6K

Apr

17

Mountains 2 Beach Marathon and Half

Ventura, California, United States

$25.99 - $139.99

Running

5K 47.2K 26.1K 15K +4