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

Sep

26

SoCal's Tiki Beach 5K & 10K Run/Walk

Huntington Beach, California, United States

$28.00 - $40.00

Running

5K 10K 1.6K

Oct

02

Look Good Feel Good San Leandro 5K, 10, Half Marathon & Marathon

San Leandro, California, United States

$50.00 - $90.00

Running

5K 10K Half-Marathon Marathon +4

Oct

03

Cal Tri LA - 10.3.27

Playa Del Rey, California, United States

$23.86 - $500.00

Triathlon Duathlon Aquabike Swimrun Swimming Running

Sprint Triathlon Ultra Sprint RunBikeRun (5km run, 19km bike, 5km run) Sprint SwimBike +9

Oct

09

Walk for Water 5K Los Angeles

Los Angeles, California, United States

$22.64 - $60.38

Running

5K Donation Only

Oct

09

Run for Mental Health 5K/10K/13.1 Los Angeles

Los Angeles, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Oct

10

Montebello Heritage 5K/10K

Montebello, California, United States

Free - $35.00

Running

10K 5K 1K

Oct

16

Monster Miles

Fountain Valley, California, United States

$35.00 - $48.00

Running

5K 10K

Oct

16

Lake Hodges Trail Festival

San Diego, California, United States

$15.00 - $110.00

Trail running Running Duathlon

50K 25.1K 15K 10.3K +7

Oct

16

Zoinks! Zombie Dash 5K/10K

Fountain Valley, California, United States

$15.00 - $47.00

Running

5K 10K 1.6K

Oct

17

Pre Registration - Beverly Hills Run of the Stars

Beverly Hills, California, United States

Running

5K 1K

Oct

17

The Fresno Donut Run

Fresno, California, United States

$25.00 - $37.00

Running

5K Kids Donut Dash - 9 & Under

Oct

23

Monster Dash

Rancho Cucamonga, California, United States

$42.00

Running

1K 5K