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

La Jolla Half Marathon & 5K

San Diego, California, United States

16 May, 2026 (Sat)

Running

Half-Marathon 10K 5K

Night Race- The Ghostly Afterlife 5K, 10K, Half Marathon- Summerween

Long Beach, California, United States

16 May, 2026 (Sat)

Running

5K 10K Half-Marathon

The Cobra 5Kai, 10Kai & Half Miyagithon

Canoga Park, California, United States

16 May, 2026 (Sat)

Running

5K 10K Half-Marathon

Sutter Buttes Spirit Mountain Run 5K, 10K & Half Marathon

Sutter, California, United States

16 May, 2026 (Sat)

Running

5K 10K Half-Marathon

13th Annual Luc's Run

Tuolumne, California, United States

16 May, 2026 (Sat)

Running

10K 3.2K 1K Half-Marathon +3

Wild Rose Half Marathon & 5K

Roseville, California, United States

16 May, 2026 (Sat)

Running, Walking

Half-Marathon 5K

Wildcat

El Sobrante, California, United States

16 May, 2026 (Sat)

Running

Half-Marathon 10.4K 5K

Run for the Rose – 5K, 10K, 10M, and Half Marathon

Long Beach, California, United States

10 May, 2026 (Sun)

Running

5K 10K 15K Half-Marathon

Long Beach Mother's Day Bloom & Zoom 5K, 10K, Half Marathon by Califlow Runs

Long Beach, California, United States

10 May, 2026 (Sun)

Running

5K 10K Half-Marathon 1.6K +3

Yosemite Half Marathon

Bass Lake, California, United States

09 May, 2026 (Sat)

Running

Half-Marathon

Beer City Half™ Sacramento

Sacramento, California, United States

09 May, 2026 (Sat)

Running

Half-Marathon 10K 5K 1.6K +1

Grizzly Peak Trail Run

Berkeley, California, United States

09 May, 2026 (Sat)

Trail running, Running

10K Half-Marathon 30K Marathon +2