0044
Half Marathons found in California in October
View all ↓Half Marathons in California in October 2025
Find A Race is the US's favourite event listings site. Check out our list of October 2025 Half Marathons in California below.
Race Calendar: Half Marathons found in October
🚀Boosted
Redding Breakfast Lions Turtle Bay Run 2025
Redding, California
05 Oct 25
$22.20 - $64.60
🚀Boosted
International Sloth Day Run 5K/10K/13.1 SACRAMENTO
Sacramento, California
18 Oct 25
$32.80 - $48.70
Feature your event at the top of the results
Halloween Havoc – 5K, 10K, and Half Marathon
Fountain Valley, California
26 Oct 25
$26.97 - $41.81
Beer City Halfâ„¢ Bishop Ranch
San Ramon, California
26 Oct 25
Free - $107.00
Trick or Trot 5K, 10K, and Half Marathon
Long Beach, California
26 Oct 25
$32.79 - $42.33
Half-Marathon Training for Fun & Fitness
Grass Valley, California
20 Jul 25 - 05 Oct 25
$36.55
Showing 41-44 of 44 results