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

New Year's Run 5K/10K/13.1 San Diego

San Diego, California, United States

Dec 26, 2026 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Countdown to the Finish – 5K, 10K, 10-Miler, Half Marathon

Long Beach, California, United States

Dec 27, 2026 (Sun)

$24.50 - $38.50

Running

5K 10K 16.1K Half-Marathon

New Year's One Day

San Jose, California, United States

Dec 31, 2026 (Thu)

Free - $205.00

Running

Ultra 48.3K 4.8K +4

Last Dash Before Midnight 5K, 10K, & Half Marathon by Califlow Runs

Long Beach, California, United States

Dec 31, 2026 (Thu)

$38.99 - $48.99

Running

5K 10K Half-Marathon

Brazen New Year's Eve

Castro Valley, California, United States

Jan 1, 2027 (Fri)

$50.00 - $95.00

Running

5K 10K Half-Marathon NYE REMOTE RUNNER

Run In The New Year 5k/10K/Half Marathon

Huntington Beach, California, United States

Jan 1, 2027 (Fri)

$38.00 - $75.00

Running

5K 10K Half-Marathon

Brazen New Year's Day

Castro Valley, California, United States

Jan 1, 2027 (Fri)

$50.00 - $95.00

Running

5K 10K Half-Marathon REMOTE RUNNER

Free New Year's Day 5k by Chico Running Club

Chico, California, United States

Jan 1, 2027 (Fri)

Free

Running

5K

8th Annual KIWANIS RESOLUTION 5K Run/Walk, and 10K Run/Walk

Mountain View, California, United States

Jan 2, 2027 (Sat)

$15.00 - $50.00

Running

5K 10K 1K

Chasing Churros 5K, 10K & Half Marathon by Califlow Runs

Long Beach, California, United States

Jan 3, 2027 (Sun)

$42.99 - $55.99

Running

5K 10K Half-Marathon

Griffith Park Resolution Run

Los Angeles, California, United States

Jan 3, 2027 (Sun)

$44.00 - $125.00

Running

Half-Marathon 12K 5K 15K

Walnut Creek Run Club

Walnut Creek, California, United States

Jan 4, 2027 (Mon)

$224.00

Running

4.8K