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

Aug

15

Pre Reg 2027 Heroes 4 Hearing 5K

Long Beach, California, United States

$15.00 - $45.00

Running

5K 1K

Aug

15

CVC San Diego Triathlon and San Diego Tri Series 5K

Chula Vista, California, United States

$34.00 - $257.00

Triathlon Duathlon Aquabike Running

Triathlon-International Triathlon-Sprint 19K Aquabike (Swim/Bike) - Sprint +7

Aug

15

Heroes 4 Hearing 5K

Long Beach, California, United States

$15.00 - $45.00

Running

5K Kids Dash

Aug

21

Walk for Water 5k Santa Barbara

Santa Barbara, California, United States

$8.49 - $60.38

Running

5K 3.2K Donation Only

Aug

21

Coffee Lover Run Los Angeles

Los Angeles, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +14

Aug

21

Idyllwild Race 5K / 10K

Idyllwild, California, United States

$5.00 - $70.00

Running Walking

5K 10K 1K 15K +2

Aug

22

Garmin Marathon Ventura

Ventura, California, United States

$40.00 - $100.00

Running

Marathon Half-Marathon 10K 5K

Aug

22

Millerton Madness Triathlon

Friant, California, United States

$60.00 - $1,000.00

Triathlon Running

17.4K 5K Sponsorship- Bronze Sponsorship- Silver +5

Aug

22

Californian Dreamin 5K, 10K, & Half Marathon by Califlow Runs

Long Beach, California, United States

$45.99 - $52.99

Running

5K 10K Half-Marathon

Aug

22

Splash Dash 5k (& Dry Run 5k) at Wild Rivers in Irvine

Irvine, California, United States

$32.00 - $40.00

Running

5K Ducky Dash (kid's 1/2 mile/400 meter/or 200 yard dash)

Aug

28

Night of the Running Dead 5K, 10K, 1 Miler, Half Marathon SummerWeen Series by Califlow Runs

Long Beach, California, United States

$25.00 - $54.99

Running

5K 10K Half-Marathon 1.6K

Aug

28

We Run Oakland: For Our Children

Oakland, California, United States

Free - $35.00

Running

5K +2