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

Oct

31

This Hill Has Eyes 5K

Palmdale, California, United States

$25.00

Running

5K

Oct

31

PB&J Fuel Run 5K/10K/13.1 SAN FRANCISCO

San Francisco, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Oct

31

Gardner Health Services Día de los Muertos Run-Walk

San Jose, California, United States

$30.00 - $65.00

Running

5K

Oct

31

Monster Mash Dash and Zombie Zoom

Merced, California, United States

$20.00 - $55.00

Running

Zoom Zoom (400 m) 5K 10K

Nov

01

Two Cities Marathon

Fresno, California, United States

$62.00 - $150.00

Running

Marathon Half-Marathon 10K 5K

Nov

01

Saratoga Education Foundation 5K Fun Run

Saratoga, California, United States

Free - $30.00

Running

0.4K 5K

Nov

01

Clarksburg Country Run

Clarksburg, California, United States

$17.00 - $78.00

Running

29.9K Half-Marathon 10K 5K +2

Nov

01

Las Calaveritas 10 Miler

Lake View Terrace, California, United States

$44.00 - $84.00

Running

16.1K 8K 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

01

2026 Optimism Cal Tri Newport Dunes - 11.1.26

Newport Beach, California, United States

$43.86 - $153.86

Triathlon Running Swimming

Ultra 4.8K 1.5K 9.7K

Nov

01

DINO DASH

Tustin, California, United States

Free - $45.00

Running Cycling

2K 5K 10K 15K +2

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