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

Peace Officer Memorial Run

Modesto, California, United States

04 Oct, 2026 (Sun)

Free - $120.00

Running

Half-Marathon 5K 1K +3

Napa Half Marathon

Napa, California, United States

04 Oct, 2026 (Sun)

Running

Half-Marathon 10.5K

Hallo-Thanks-Mas Dash – 5K, 10K, and Half Marathon

San Diego, California, United States

04 Oct, 2026 (Sun)

$28.50 - $42.50

Running

5K 10K Half-Marathon

Redding Breakfast Lions Turtle Bay Run 2026

Redding, California, United States

04 Oct, 2026 (Sun)

$25.00 - $65.00

Running

Half-Marathon 10K 3.2K

Judgment Day Half Marathon, 10K & 5K Run/Walk

Bakersfield, California, United States

04 Oct, 2026 (Sun)

$40.00 - $70.00

Running

Half-Marathon 10K 5K

Coffee Lovers Run 5K/10K/13.1 SAN FRANCISCO

San Francisco, California, United States

10 Oct, 2026 (Sat) – 28 Nov, 2026

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

Coffee Lovers Run 5K/10K/13.1 SAN DIEGO

San Diego, California, United States

10 Oct, 2026 (Sat) – 28 Nov, 2026

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

Coffee Lovers Run 5K/10K/13.1 SACRAMENTO

Sacramento, California, United States

10 Oct, 2026 (Sat) – 28 Nov, 2026

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

Coffee Lovers Run 5K/10K/13.1 LOS ANGELES

Los Angeles, California, United States

10 Oct, 2026 (Sat) – 28 Nov, 2026

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

Bizz Johnson

Susanville, California, United States

11 Oct, 2026 (Sun)

$65.00 - $100.00

Running

Ultra Half-Marathon 10K

Champion Mine Trail Race

Nevada City, California, United States

11 Oct, 2026 (Sun)

$35.00 - $65.00

Running

Half-Marathon 10K 5K

2026 Humboldt Redwoods Marathon, Half Marathon, 5K

Weott, California, United States

11 Oct, 2026 (Sun)

$50.00 - $120.00

Running

Half-Marathon 5K Marathon