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

Nov

01

2026 Optimism Cal Tri Newport Dunes - 11.1.26

Newport Beach, California, United States

$53.86 - $178.86

Triathlon Running Swimming

Ultra 4.8K 1.5K 9.7K

Nov

01

Las Calaveritas 10 Miler

Lake View Terrace, California, United States

$49.00 - $89.00

Running

16.1K 8K 5K

Nov

01

Día de Muertos - Viva la Vida - 5K, 10K, and Half Marathon by Califlow Runs

Long Beach, California, United States

$25.00 - $58.99

Running

5K 10K Half-Marathon 1.6K

Nov

01

Clarksburg Country Run

Clarksburg, California, United States

$20.00 - $83.00

Running

29.9K Half-Marathon 10K 5K +2

Nov

01

DINO DASH

Tustin, California, United States

Free - $50.00

Running Cycling

2K 5K 10K 15K +2

Nov

01

Almond Bowl 5K & 10K November 1st, 2026

Chico, California, United States

$50.00 - $60.00

Running

5K 10K

Nov

01

Saratoga Education Foundation 5K Fun Run

Saratoga, California, United States

Free - $45.00

Running

0.4K 5K

Nov

01

Halloween Leftovers – 5K, 10K, 10-Miler, Half Marathon

Long Beach, California, United States

$24.50 - $38.50

Running

5K 10K 16.1K Half-Marathon

Nov

05

Coastal Canyon XC League Finals

Camarillo, California, United States

Running

4.8K +2

Nov

06

Backonroad: Pop Up Run LA

Los Angeles, California, United States

Free

Running

5K 10K

Nov

07

Kaiser Permanente Get Fit Festival

Irvine, California, United States

$40.00 - $270.00

Running Cycling

Ultra 5K 48.3K

Nov

07

RunThrough San Francisco at Crissy Field 5k, 100k & Half Marathon

San Francisco, California, United States

$43.05 - $71.40

Running

5K 10K Half-Marathon