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

Sep

19

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

Rocklin, California, United States

$35.00 - $45.00

Running

5K 10K Half-Marathon

Sep

19

Jurassic Jaunt – 5K, 10K, 10M, and Half Marathon

Long Beach, California, United States

$24.50 - $38.50

Running

5K 10K 10 Miler Half-Marathon

Sep

20

Alameda Island Running Festival

Alameda, California, United States

$25.00 - $130.00

Running

Half-Marathon 10K 5K 1.6K

Sep

20

La Noche de las Brujas Run -SummerWeen Series 5K 10K Half by Califlow Runs

Long Beach, California, United States

$28.99 - $65.99

Running

5K 10K Half-Marathon 1.6K

Sep

24

Pjrc Virtual 5K

Dana Point, California, United States

Free

Running

5K Half-Marathon

Sep

26

Oktoberfest Run 5K/10K/13.1 SAN DIEGO

San Diego, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Sep

26

Oktoberfest Run 5K/10K/13.1 LOS ANGELES

Los Angeles, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Sep

26

Oktoberfest Run 5K/10K/13.1 SACRAMENTO

Sacramento, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Sep

26

Oktoberfest Run 5K/10K/13.1 SAN FRANCISCO

San Francisco, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Sep

27

Take Me to Your Pizza : Alien Dash 5K. 10K. Half Marathon Sponsored by Domino's Pizza

Long Beach, California, United States

$30.00 - $64.99

Running

5K 10K Half-Marathon 1.6K

Sep

27

The Retro Run – 5K, 10k, 10m, and Half Marathon

Long Beach, California, United States

$24.50 - $38.50

Running

5K 10K 16.1K Half-Marathon

Oct

02

Sgrail Marin - Triathlon & Trail Half Marathon

San Rafael, California, United States

Free - $390.00

Triathlon Running Trail running

Kids "Fun" Event Ultra Half-Marathon +1