Race Calendar in California, United States

ZombieRunner Halloween

San Jose, California, United States

31 Oct, 2026 (Sat)

Free - $80.00

Trail running, Running

5K 10K Half-Marathon Marathon +6

TriFind Race Director Summit

Newport Beach, California, United States

31 Oct, 2026 (Sat)

The Long Beach Halloween Run 5K. 10K. Half Marathon by Califlow Runs

Long Beach, California, United States

31 Oct, 2026 (Sat)

$42.99 - $56.99

Running

5K 10K Half-Marathon

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

San Francisco, California, United States

31 Oct, 2026 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Halloween Trick or Trot Run 5K/10K/13.1 SACRAMENTO

Sacramento, California, United States

31 Oct, 2026 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

PB&J Fuel Run 5K/10K/13.1 SACRAMENTO

Sacramento, California, United States

31 Oct, 2026 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Halloween Trick or Trot Run 5K/10K/13.1 SAN FRANCISCO

San Francisco, California, United States

31 Oct, 2026 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Las Calaveritas 10 Miler

Lake View Terrace, California, United States

01 Nov, 2026 (Sun)

$35.00 - $69.00

Running

16.1K 8K 5K

2026 Morro Bay Triathlon

Morro Bay, California, United States

01 Nov, 2026 (Sun)

$180.00 - $270.00

Triathlon

Ultra 25.7K

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

Chico, California, United States

01 Nov, 2026 (Sun)

$45.00 - $55.00

Running

5K 10K

2026 Optimism Cal Tri Newport Dunes - 11.1.26

Newport Beach, California, United States

01 Nov, 2026 (Sun)

$43.86 - $153.86

Triathlon, Running, Swimming

Ultra 4.8K 1.5K 9.7K

DINO DASH

Tustin, California, United States

01 Nov, 2026 (Sun)

Free - $35.00

Running, Cycling

2K 5K 10K 15K +2