Running Race Calendar in California, United States

2026 Cal Tri LA - 10.18.26

Playa Del Rey, California, United States

Oct 18, 2026 (Sun)

Free - $153.86

Triathlon, Running, Swimming

Ultra 5K 1.5K 10K +1

Witches Wave - Halloween Run 5K, 10K, and Half Marathon by Califlow Runs

Huntington Beach, California, United States

Oct 18, 2026 (Sun)

$38.99 - $48.99

Running

5K 10K Half-Marathon

MISSION INN RUN

Riverside, California, United States

Oct 18, 2026 (Sun)

$25.00 - $95.00

Running, Walking

5K 10K Half-Marathon 2K +4

Eden Rift Haunted Wine Run 5k

Hollister, California, United States

Oct 24, 2026 (Sat)

$30.00

Running

5K

DIA DE LOS MUERTOS HALF MARATHON & 5K RUN/WALK (BAKERSFIELD)

Bakersfield, California, United States

Oct 24, 2026 (Sat)

$50.00 - $84.00

Running, Walking

Half-Marathon 5K 3.2K

NIGHT NATION RUN - SACRAMENTO

Sacramento, California, United States

Oct 24, 2026 (Sat)

$35.00 - $55.00

Running

5K

Run4Recovery 5K Run/Walk

Covina, California, United States

Oct 24, 2026 (Sat)

$40.00

Running

5K

SoCal's Sunset Trick or Trot 5k/10K - Halloween Race

Huntington Beach, California, United States

Oct 24, 2026 (Sat)

$25.00 - $45.00

Running

5K 10K 0.8K

Miles for Migraine San Francisco

San Francisco, California, United States

Oct 24, 2026 (Sat)

Running

3.2K 5K

Vaquero Strong 5K

Irvine, California, United States

Oct 24, 2026 (Sat)

$30.00

Running

5K

Stride for Hope: Breast Cancer Awareness Walk & Wellness Event

Lemoore, California, United States

Oct 24, 2026 (Sat)

Free

Running

3.5K

Malibu Moves: Half Marathon, 10K, 5K, 1-Mi & 1K

Malibu, California, United States

Oct 24, 2026 (Sat) – Oct 25, 2026

Free - $170.00

Running

10K 5K 1K Half-Marathon +8