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

Mar

20

Fort Bragg Whale Run and Walk

Fort Bragg, California, United States

$35.00 - $45.00

Running

Half-Marathon 10K 5K

Mar

20

United Health Centers Foundation Fun Run

Fresno, California, United States

$10.00 - $25.00

Running Walking

10K 5K 3.2K Kids Race #1 (Age 3-4) +3

Mar

20

Signal Hill Rotary Mutt Run 1K & 5K

Long Beach, California, United States

$25.00 - $35.00

Running

5K 1K

Mar

20

Finish The Ride and Finish The Run Griffith Park

Los Angeles, California, United States

$10.00 - $135.00

Running Cycling

1K 5K 10K 15K +8

Mar

20

St. Paddy's Day Lucky Run 5K/10K/13.1 Los Angeles

Los Angeles, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Mar

20

St. Paddy's Day Lucky Run 5K/10K/13.1 San Francisco

San Francisco, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Mar

20

St. Paddy's Day Lucky Run 5K/10K/13.1 San Diego

San Diego, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Mar

20

Spring Fling Duathlon/5k

Fresno, California, United States

$45.00 - $160.00

Duathlon Running

25.7K 5K +1

Mar

20

Keepin’ It Renal Run/Walk (Pasadena, California)

Pasadena, California, United States

$30.00

Running

5K

Mar

20

Run for Roots: Heard It Through the Grapevine

Fresno, California, United States

$35.00 - $50.00

Running

5K 2.4K

Mar

21

Reach Foundation Shamrock 'n Run

Anaheim, California, United States

$29.10 - $39.60

Running

5K 2K +4

Mar

27

The Rabbit Run 5k & OC Challenge Wild Hare 5k & Half Marathon Irvine

Irvine, California, United States

$30.00 - $80.00

Running

5K Bunny Dash - Fun Run ( 6 & Under) 200 and 400 yards Half-Marathon +1