5K races in California, United States — 2026 running calendar

Oct

24

World Run Day Virtual 5K - Los Angeles

Los Angeles, California, United States

$19.99

Running

5K

Oct

24

World Run Day Virtual 5K - Santa Clarita

Santa Clarita, California, United States

$19.99

Running

5K

Oct

24

World Run Day Virtual 5K - Oakland

Oakland, California, United States

$19.99

Running

5K

Oct

24

World Run Day Virtual 5K - Thousand Oaks

Thousand Oaks, California, United States

$19.99

Running

5K

Oct

18

Pasadena Trail Half & 10k/5k

Pasadena, California, United States

Running

Half-Marathon 10K 5K

Oct

18

Mob 5K Run Walk For Fun

Bonita, California, United States

Running

5K

Oct

18

MISSION INN RUN

Riverside, California, United States

Running Walking

5K 10K Half-Marathon 2K +4

Oct

18

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

Huntington Beach, California, United States

Running

5K 10K Half-Marathon

Oct

18

Vampire Run - Unite for Bleeding Disorders

Roseville, California, United States

Running Walking

5K 1.6K

Oct

18

Lake Evans Triathlon, 5k & 10k

Bakersfield, California, United States

Triathlon Aquabike Swimrun Duathlon Running

23.7K 48.4K 18.7K 5.3K +12

Oct

18

2026 - City to the Sea Half Marathon & 5K

San Luis Obispo, California, United States

Running

Half-Marathon 5K

Oct

18

SD HipHop 5k

San Diego, California, United States

Running

4.8K