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

Oct

31

PB&J Fuel Run 5K/10K/13.1 SACRAMENTO

Sacramento, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Oct

31

Halloween Trick or Trot Run 5K/10K/13.1 SACRAMENTO

Sacramento, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Oct

31

Halloween Trick or Trot Run 5K/10K/13.1 SAN DIEGO

San Diego, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Nov

01

Día de Muertos - Viva la Vida - 5K, 10K, and Half Marathon by Califlow Runs

Long Beach, California, United States

$25.00 - $58.99

Running

5K 10K Half-Marathon 1.6K

Nov

01

Two Cities Marathon

Fresno, California, United States

$65.00 - $160.00

Running

Marathon Half-Marathon 10K 5K

Nov

01

Halloween Leftovers – 5K, 10K, 10-Miler, Half Marathon

Long Beach, California, United States

$24.50 - $38.50

Running

5K 10K 16.1K Half-Marathon

Nov

01

Clarksburg Country Run

Clarksburg, California, United States

$20.00 - $83.00

Running

29.9K Half-Marathon 10K 5K +2

Nov

07

Beer City Half™ OC

Santa Ana, California, United States

$32.50 - $102.50

Running

Half-Marathon 10K 5K 1.6K +1

Nov

07

Lake Chabot Trail Run

Castro Valley, California, United States

Free - $90.00

Trail running Running

7.7K Half-Marathon 30K Marathon +4

Nov

07

RunThrough San Francisco at Crissy Field 5k, 100k & Half Marathon

San Francisco, California, United States

$43.05 - $71.40

Running

5K 10K Half-Marathon

Nov

08

2026 Silver Strand Veterans Day Half Marathon, 10 Miler, 12K & 5K - San Diego

Coronado, California, United States

$58.00 - $140.00

Running

Half-Marathon 16.1K 12K 5K +6

Nov

08

Temecula Half Marathon, 10K, 5K

Temecula, California, United States

$65.00 - $140.00

Running

Half-Marathon 10K 5K