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

Bear Creek

Orinda, California, United States

Aug 8, 2026 (Sat)

Running

Half-Marathon 10.1K 5K

Margaritaville Run San Diego Gaslamp 10K & 5K

San Diego, California, United States

Aug 8, 2026 (Sat)

$64.00 - $79.00

Running

5K 10K

Falcon 5K

Pleasant Hill, California, United States

Aug 8, 2026 (Sat)

$45.00

Running

5K

Run Through the Pines | 5K and 10K

Crestline, California, United States

Aug 8, 2026 (Sat)

$50.00

Running

5K 10K

ONETrack International 5K

San Diego, California, United States

Aug 8, 2026 (Sat)

$5.00

Running

5K

The OC Fair Fun Run

Costa Mesa, California, United States

Aug 9, 2026 (Sun)

$50.00

Running

5K 1.6K

Sundae Funday - Ice Cream Run 5K, 10K, and Half Marathon by Califlow Runs

Long Beach, California, United States

Aug 9, 2026 (Sun)

$18.00 - $52.99

Running

5K 10K Half-Marathon 1K

Tri Santa Cruz

Santa Cruz, California, United States

Aug 9, 2026 (Sun)

$95.00

Swimming, Running

1.5K Ultra 5K

Howl at the Moon – 5K, 10K, 10M, and Half Marathon

Long Beach, California, United States

Aug 9, 2026 (Sun)

$28.50 - $42.50

Running

5K 10K 15K Half-Marathon

Cupertino Splash and Dash #2

Cupertino, California, United States

Aug 13, 2026 (Thu)

$40.00 - $95.00

Swimrun, Swimming, Running

6.4K 0.8K 1.6K 4.8K +1

Bagel Run 5K/10K/13.1 SAN DIEGO

San Diego, California, United States

Aug 15, 2026 (Sat) – Oct 10, 2026

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

Bagel Run 5K/10K/13.1 SAN FRANCISCO

San Francisco, California, United States

Aug 15, 2026 (Sat) – Oct 10, 2026

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8