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

Oct

24

World Run Day Virtual 5K - Orange

Orange, California, United States

$19.99

Running

5K

Oct

24

Mutt Run

San Diego, California, United States

Running

5K

Oct

24

Lasaa Mug Run - Lasd Carson Station

Carson, California, United States

$30.00

Running

5K 10K

Oct

25

Spooky Shuffle – 5k, 10k, Half Marathon

Van Nuys, California, United States

$28.50 - $42.50

Running

5K 10K Half-Marathon

Oct

25

2026 Winters Spooktacular Fun Run and Costume Contest

Winters, California, United States

$20.00 - $45.00

Running

1.6K 5K 10K +2

Oct

25

DIA DE LOS MUERTOS 5K RUN/WALK - CLOVIS

Clovis, California, United States

$55.00

Running Walking

5K 3.2K

Oct

25

Monster Mash

Coronado, California, United States

Free - $65.00

Running

5K 10K 1K Trunk or Treat - EFMP +11

Oct

25

5K Trunk Or Treat

Corona, California, United States

$15.00 - $20.00

Running

5.1K 1.6K

Oct

25

Howl-o-ween Doggie Dash 5K

Los Angeles, California, United States

Running

5K

Oct

25

Space Race Run

La Canada Flintridge, California, United States

$10.00 - $65.00

Running

5K 1.6K +1

Oct

25

Pleasanton Rotary Halloween Spirit Run

Pleasanton, California, United States

$25.00 - $55.00

Running

5K 10K 6.4K Kids Challenge: 100 yard dash

Oct

25

Hop Skip and Splash 5K Fun Run/Walk

Huntington Beach, California, United States

$50.00 - $65.00

Running

5K