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

Sep

27

The Retro Run – 5K, 10k, 10m, and Half Marathon

Long Beach, California, United States

Running

5K 10K 16.1K Half-Marathon

Sep

27

Miles for Inclusion 5K (Walk, Jog or Run)

Porter Ranch, California, United States

Running

5K

Sep

27

KCF Calabasas 5K Run

Calabasas, California, United States

Running

5K 1.6K

Sep

26

Lasaa Mug Run - Parks Bureau

Castaic, California, United States

Running

5K 10K

Sep

26

Ascot Hills Challenge 5K

Los Angeles, California, United States

Running

5K

Sep

26

Oktoberfest Run 5K/10K/13.1 LOS ANGELES

Los Angeles, California, United States

Running

5K 10K Half-Marathon 1.6K +2

Sep

26

Hers Breast Cancer Foundation 5K and 10K

Fremont, California, United States

Running

10K 5K

Sep

26

CASA Superhero Run 2026

Lodi, California, United States

Running

5K

Sep

26

Be The Light 5K

Valencia, California, United States

Running

10K 5K

Sep

26

Oktoberfest Run 5K/10K/13.1 SACRAMENTO

Sacramento, California, United States

Running

5K 10K Half-Marathon 1.6K +2

Sep

26

Unicorn Dash 5k

Shingle Springs, California, United States

Running

5K

Sep

26

Vintage Festival 5K Fun Run

Sonoma, California, United States

Running

5K