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

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

17

The Ruck Challenge

Norco, California, United States

Running

5K 10K

Oct

17

Glenn Bass Run

Sonora, California, United States

Running

5K 1.6K

Oct

17

The Donut Fun Run 2026!

Alameda, California, United States

Running

5K

Oct

17

Jakes & Del Mar Lifeguard Association Fun Run/Walk

Del Mar, California, United States

Running

5.1K

Oct

17

San Diego Miles for Melanoma 5K

San Diego, California, United States

Running

5K 1.6K Youth Rate - Walker Youth Rate - Runner +1

Oct

17

Race of Legends XC

Los Angeles, California, United States

Running

5K

Oct

17

Combat Cancer Walk

Corona, California, United States

Running

4.8K Event Shirt Only

Oct

17

Pomona 5K & 10K

Pomona, California, United States

Running

5K 10K 15K 0.4K +3

Oct

17

12th Annual Native Breast Cancer Awareness Walk/Run

Elk Grove, California, United States

Walking Running

2.3K 4.5K

Oct

17

Ventura County XC Championships

Ventura, California, United States

Running

4.8K +3

Oct

17

Springville Apple Run

Springville, California, United States

Running Walking

5K 10K 3.2K 1K