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

May

02

Cal Tri Ventura - 5.2.27

Ventura, California, United States

$28.86 - $500.00

Triathlon Duathlon Aquabike Swimrun Swimming Running

Sprint Triathlon Ultra Sprint RunBikeRun (5km run, 22km bike, 5km run) Sprint SwimBike +9

May

02

May the be with You- The Empire Strides Back 5K, 10K, & Half Marathon by Califlow Runs

Long Beach, California, United States

$18.00 - $64.99

Running

5K 10K Half-Marathon 1.6K +1

May

02

Spring Sprint Triathlon & San Diego Tri Series 5K

San Diego, California, United States

$34.00 - $261.00

Triathlon Duathlon Aquabike Running

Triathlon-International Triathlon-Sprint 5K Aquabike (Swim/Bike) - Sprint +7

May

08

Beer City Half™ Sacramento

Sacramento, California, United States

$25.00 - $87.50

Running

Half-Marathon 10K 5K 1.6K +2

May

08

Race to Cure Sarcoma San Francisco

San Francisco, California, United States

$10.00 - $35.00

Running

5K 1.6K

May

08

Run for Chocolate 5k/10k/13.1 San Diego

San Diego, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

May

08

Run for Chocolate 5k/10k/13.1 San Francisco

San Francisco, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

May

08

Run for Chocolate 5k/10k/13.1 Sacramento

Sacramento, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

May

08

Lynwood 5K/10K Run

Lynwood, California, United States

$10.00 - $35.00

Running

5K 10K +1

May

08

Sasquatch Trail Run

Woodlake, California, United States

$15.00 - $55.00

Running

5K Kids Race

May

09

Bakersfield Mother’s Day Run

Bakersfield, California, United States

$40.00 - $55.00

Running Walking

5K 2K Virtual Run

May

09

Trailquake

Saratoga, California, United States

$45.00 - $90.00

Running

Half-Marathon 10.8K 5.1K