Half-Marathon races in California, United States — 2026 running calendar

July 4th Run 5K/10K/13.1 SAN DIEGO

San Diego, California, United States

Jul 4, 2026 (Sat)

Running

5K 10K Half-Marathon 1.6K +2

Run for Chocolate 5K/10K/13.1 SAN FRANCISCO

San Mateo, California, United States

Jul 4, 2026 (Sat)

Running

5K 10K Half-Marathon 1.6K +2

Run for Chocolate 5K/10K/13.1 LOS ANGELES

Los Angeles, California, United States

Jul 4, 2026 (Sat)

Running

5K 10K Half-Marathon 1.6K +2

July 4th Run 5K/10K/13.1 SAN FRANCISCO

San Mateo, California, United States

Jul 4, 2026 (Sat)

Running

5K 10K Half-Marathon 1.6K +2

Red, White & Blue Race

Fort Bragg, California, United States

Jul 4, 2026 (Sat)

Running

Half-Marathon 0.8K 10K 5K

Alien Run – 5K, 10K, 10M, and Half Marathon

Long Beach, California, United States

Jun 28, 2026 (Sun)

Running

5K 10K 15K Half-Marathon

Goleta Beach Half Marathon, 10K, 5K, Kid's 1-Mile

Goleta, California, United States

Jun 27, 2026 (Sat)

Running

Half-Marathon 10.7K 5K 1.6K

Summer time in the LBC 5K, 10K, & Half Marathon by Califlow Runs

Long Beach, California, United States

Jun 27, 2026 (Sat)

Running

5K 10K Half-Marathon

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

Presidio Half Marathon

San Francisco, California, United States

Jun 21, 2026 (Sun)

Running

Half-Marathon 10K 5.5K

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

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