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

Oct

11

OktoberFest Pumpkin Run

Fresno, California, United States

Running

5K

Oct

11

Fredrick Michael Gibson 5K/10K & Half Marathon Walk/Run for Depression Awareness

Simi Valley, California, United States

Running

Half-Marathon 10K 5K 1K +2

Oct

11

Discover Highland Run

Highland, California, United States

Running

5K 10K

Oct

11

2026 XTERRA WETSUITS Mission Bay Triathlon & San Diego 5K

San Diego, California, United States

Duathlon Running

19K 5K

Oct

11

Rock & Run

Aromas, California, United States

Running

5K

Oct

11

Witch Way to the Polls

Los Angeles, California, United States

Running

5K

Oct

11

Champion Mine Trail Race

Nevada City, California, United States

Running

Half-Marathon 10K 5K

Oct

10

Reggie's Run

Boron, California, United States

Running

5K

Oct

10

GO2 SoCal 5K Walk/Run

Los Angeles, California, United States

Running

5K +1

Oct

10

Monterey's Breast Cancer Awareness Run

Monterey, California, United States

Running

5K

Oct

10

Coffee Lovers Run 5K/10K/13.1 SAN DIEGO

San Diego, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

Oct

10

Coffee Lovers Run 5K/10K/13.1 SACRAMENTO

Sacramento, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8