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

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

Sacramento, California, United States

Oct 31, 2026 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Halloween Trick or Trot Run 5K/10K/13.1 LOS ANGELES

Los Angeles, California, United States

Oct 31, 2026 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

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

Long Beach, California, United States

Nov 1, 2026 (Sun)

$25.00 - $58.99

Running

5K 10K Half-Marathon 1.6K

Clarksburg Country Run

Clarksburg, California, United States

Nov 1, 2026 (Sun)

$12.75 - $67.00

Running

29.9K Half-Marathon 10K 5K +2

Two Cities Marathon

Fresno, California, United States

Nov 1, 2026 (Sun)

$60.00 - $140.00

Running

Marathon Half-Marathon 10K 5K

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

Long Beach, California, United States

Nov 1, 2026 (Sun)

$24.50 - $38.50

Running

5K 10K 16.1K Half-Marathon

Beer City Half™ OC

Santa Ana, California, United States

Nov 7, 2026 (Sat)

$25.00 - $95.00

Running

Half-Marathon 10K 5K 1.6K +1

Lake Chabot Trail Run

Castro Valley, California, United States

Nov 7, 2026 (Sat)

Free - $90.00

Trail running, Running

7.7K Half-Marathon 30K Marathon +4

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

San Francisco, California, United States

Nov 7, 2026 (Sat)

$43.05 - $71.40

Running

5K 10K Half-Marathon

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

Coronado, California, United States

Nov 8, 2026 (Sun)

$50.00 - $126.00

Running

Half-Marathon 16.1K 12K 5K +6

Temecula Half Marathon, 10K, 5K

Temecula, California, United States

Nov 8, 2026 (Sun)

$60.00 - $130.00

Running

Half-Marathon 10K 5K

Donut Runners Rejoice – 5K, 10K, 10-Miler, Half Marathon

Long Beach, California, United States

Nov 8, 2026 (Sun)

$24.50 - $38.50

Running

5K 10K 16.1K Half-Marathon