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128 marathons found for "California", 10K, United States. Keep the list broad first, then tighten the filters when a race looks realistic.





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San Juan Capistrano, California, United States
31OCT
ULTRA
Caspers Trail Races
San Juan Capistrano, California, United States
October 31, 2026 OCT
Los Angeles, California, United States
31OCT
21.1K
Halloween Trick or Trot Run 5K/10K/13.1 LOS ANGELES
Los Angeles, California, United States
October 31, 2026 OCT
Sacramento, California, United States
31OCT
21.1K
Halloween Trick or Trot Run 5K/10K/13.1 SACRAMENTO
Sacramento, California, United States
October 31, 2026 OCT
San Diego, California, United States
31OCT
21.1K
Halloween Trick or Trot Run 5K/10K/13.1 SAN DIEGO
San Diego, California, United States
October 31, 2026 OCT
San Francisco, California, United States
31OCT
21.1K
Halloween Trick or Trot Run 5K/10K/13.1 SAN FRANCISCO
San Francisco, California, United States
October 31, 2026 OCT
Long Beach, California, United States
31OCT
21.1K
Happy Halloween 5k, 10k, 15k, Half Marathon
Long Beach, California, United States
October 31, 2026 OCT
Los Angeles, California, United States
31OCT
21.1K
PB&J Fuel Run 5K/10K/13.1 LOS ANGELES
Los Angeles, California, United States
October 31, 2026 OCT
Sacramento, California, United States
31OCT
21.1K
PB&J Fuel Run 5K/10K/13.1 SACRAMENTO
Sacramento, California, United States
October 31, 2026 OCT
San Diego, California, United States
31OCT
21.1K
PB&J Fuel Run 5K/10K/13.1 SAN DIEGO
San Diego, California, United States
October 31, 2026 OCT
San Francisco, California, United States
31OCT
21.1K
PB&J Fuel Run 5K/10K/13.1 SAN FRANCISCO
San Francisco, California, United States
October 31, 2026 OCT
Bossier City, California, United States
31OCT
21.1K
Salute to Veterans 5K/10K/Half Marathon - Bossier City, LA
Bossier City, California, United States
October 31, 2026 OCT
Long Beach, California, United States
31OCT
21.1K
The Long Beach Halloween Run 5K. 10K. Half Marathon by Califlow Runs
Long Beach, California, United States
October 31, 2026 OCT
San Jose, California, United States
31OCT
42.2K
ZombieRunner Halloween
San Jose, California, United States
October 31, 2026 OCT
Long beach, California, United States
01NOV
21.1K
Día de Muertos - Viva la Vida - 5K, 10K, and Half Marathon by Califlow Runs
Long beach, California, United States
November 1, 2026 NOV
Fresno, California, United States
01NOV
42.2K
Two Cities Marathon
Fresno, California, United States
November 1, 2026 NOV
Various Cities in, California, United States
07NOV
21.1K
Beer City Half
Various Cities in, California, United States
November 7, 2026 NOV
Santa Ana, California, United States
07NOV
21.1K
Beer City Half™ OC
Santa Ana, California, United States
November 7, 2026 NOV
Silverado, California, United States
07NOV
42.2K
The Saddleback Marathon
Silverado, California, United States
November 7, 2026 NOV
Santa Barbara, California, United States
08NOV
42.2K
Santa Barbara International Marathon
Santa Barbara, California, United States
November 8, 2026 BQ Qualifier
Temecula, California, United States
08NOV
21.1K
Temecula Half Marathon, 10K, 5K
Temecula, California, United States
November 8, 2026 NOV
Long Beach, California, United States
13NOV
ULTRA
Camp Turkey Terror: Night- Friday the 13th Deranged Turkey Trot: 5K. 10K. Half Marathon by Califlow Runs
Long Beach, California, United States
November 13, 2026 NOV
Avalon, California, United States
14NOV
21.1K
Catalina Island Half-Marathon & 10K
Avalon, California, United States
November 14, 2026 NOV
Long Beach, California, United States
14NOV
ULTRA
Huffin for the Stuffin- Turkey Trot 5K, 10K, & Half Marathon
Long Beach, California, United States
November 14, 2026 NOV
Los Angeles, California, United States
14NOV
21.1K
Run for Mental Health 5K/10K/13.1 LOS ANGELES
Los Angeles, California, United States
November 14, 2026 NOV

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