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

The Rock the Loch 5K/10K/Half Marathon (LIVE or Virtual)

Castro Valley, California, United States

Jun 26, 2026 (Fri) – Jun 29, 2026

Running, Trail running

5K 10K Half-Marathon +2

Goleta Beach Splash & Dash

Goleta, California, United States

Jun 23, 2026 (Tue)

Swimrun, Running, Swimming

Swim/Run 06/23/26 5K Swim - 800 meter 06/23/26 Kid's Swim/Run 06/23/26 +1

Presidio Half Marathon

San Francisco, California, United States

Jun 21, 2026 (Sun)

Running

Half-Marathon 10K 5.5K

Los Angeles Frontrunners Pride Run 2026

Los Angeles, California, United States

Jun 21, 2026 (Sun)

Running

5K 10K 15K

La Noche de La Llorona Run SummerWeen Series 5K 10K Half by Califlow Runs

Long Beach, California, United States

Jun 21, 2026 (Sun)

Running

5K 10K 1.6K Half-Marathon

Father’s Day Classic – 5K, 10K, 10-Miler, and Half Marathon

Long Beach, California, United States

Jun 21, 2026 (Sun)

Running

5K 10K 16.1K Half-Marathon

Father's Day Run for Rotary (Cancelled for 2026)

Concord, California, United States

Jun 21, 2026 (Sun)

Running

5K

Greater Sacramento Urban League's 4th Annual Juneteenth Run/Walk

Sacramento, California, United States

Jun 20, 2026 (Sat)

Running

5K 10K

8th Annual Roger’s Run & Walk June 20, 2026 FREE Signups Below Sponsored By Modesto Moves

Ceres, California, United States

Jun 20, 2026 (Sat)

Running

5K

Summer Solstice Run : 5K.10K. Half Marathon –by Califlow Runs

Long Beach, California, United States

Jun 20, 2026 (Sat)

Running

5K 10K Half-Marathon

City of Maywood Open Streets 5K Run/Walk

Maywood, California, United States

Jun 20, 2026 (Sat)

Running

5K

FBE Juneteenth 5K – San Diego

San Diego, California, United States

Jun 20, 2026 (Sat)

Running

5K 1K