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

SuperHeroes Run 5K/10K/13.1 SAN DIEGO

San Diego, California, United States

Jun 6, 2026 (Sat)

Running

5K 10K Half-Marathon 1.6K +2

SuperHeroes Run 5K/10K/13.1 LOS ANGELES

Los Angeles, California, United States

Jun 6, 2026 (Sat)

Running

5K 10K Half-Marathon 1.6K +2

SuperHero - Runbelievable - 5K. 10K. Half Marathon by Califlow Runs

Long Beach, California, United States

Jun 6, 2026 (Sat)

Running

5K 10K Half-Marathon 1.6K

71st Annual Fontana Days Run

Fontana, California, United States

Jun 6, 2026 (Sat)

Running

Half-Marathon 5K 1K

Blue Moon 5K. 10K. Half Marathon by Califlow Runs

Long Beach, California, United States

May 31, 2026 (Sun)

Running

5K 10K Half-Marathon

The Great White Chase – 5K, 10K, 10M, and Half Marathon

Long Beach, California, United States

May 31, 2026 (Sun)

Running

5K 10K 15K Half-Marathon

Cinderella Trail Run

Oakland, California, United States

May 30, 2026 (Sat)

Trail running, Running

8K Half-Marathon 30K Marathon +2

16th Annual BEACHFRONT RUN

Ventura, California, United States

May 30, 2026 (Sat)

Running

Half-Marathon 10K 5K 1K

Beer City Half™ San Jose

San Jose, California, United States

May 30, 2026 (Sat)

Running

Half-Marathon 10K 5K 1.6K +1

Laguna Hills Memorial Day Half Marathon, 5K & 10K

Laguna Hills, California, United States

May 25, 2026 (Mon)

Running

Half-Marathon 10K 5K

Sweet Life - Pineapple Run 5K. 10K. Half Marathon by Califlow Runs

Long Beach, California, United States

May 24, 2026 (Sun)

Running

5K 10K Half-Marathon 1.6K

Run for Mental Health 5K/10K/13.1 SAN FRANCISCO

San Mateo, California, United States

May 23, 2026 (Sat) – Nov 14, 2026

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +14