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Half Marathons found in California in October
View all ↓Half Marathons in California in October 2026
Find A Race is the US's favourite event listings site. Check out our list of October 2026 Half Marathons in California below.
Race Calendar: Half Marathons found in October
🚀Boosted
LOOK GOOD FEEL GOOD SAN LEANDRO 5K, 10, HALF MARATHON & MARATHON
San Leandro, California
Mon 13 Jul 26 - Sat 02 Oct 27
$34.00 - $96.40
🚀Boosted
MISSION INN FOUNDATION RUN
Riverside, California
Sun 18 Oct 26
$28.29 - $113.69
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Pinkathon 2026 Virtual and In-Person Challenge for Breast Cancer!
Any Place in the World!, California
Mon 01 Jun 26 - Sat 31 Oct 26
Free - $27.50
LOOK GOOD FEEL GOOD SAN LEANDRO 5K, 10, HALF MARATHON & MARATHON
San Leandro, California
Mon 13 Jul 26 - Sat 02 Oct 27
$34.00 - $96.40
Cookie Run 5K/10K/13.1 SAN FRANCISCO
San Mateo, California
Sat 10 Oct 26
$32.80 - $64.60
Cookie Run 5K/10K/13.1 SAN DIEGO
San Diego, California
Sat 10 Oct 26
$32.80 - $64.60
Cookie Run 5K/10K/13.1 SACRAMENTO
Sacramento, California
Sat 10 Oct 26
$32.80 - $54.00
Coffee Lovers Run 5K/10K/13.1 SAN DIEGO
San Diego, California
Sat 10 Oct 26
$32.80 - $64.60
Coffee Lovers Run 5K/10K/13.1 SACRAMENTO
Sacramento, California
Sat 10 Oct 26
$32.80 - $54.00
Coffee Lovers Run 5K/10K/13.1 SAN FRANCISCO
San Mateo, California
Sat 10 Oct 26
$32.80 - $64.60
Coffee Lovers Run 5K/10K/13.1 LOS ANGELES
Los Angeles, California
Sat 10 Oct 26
$32.80 - $64.60
Cookie Run 5K/10K/13.1 LOS ANGELES
Los Angeles, California
Sat 10 Oct 26
$32.80 - $64.60
Champion Mine Trail Race
Nevada City, California
Sun 11 Oct 26
$43.40 - $75.20
Bizz Johnson
Susanville, California
Sun 11 Oct 26
$91.10 - $128.20
2026 Humboldt Redwoods Marathon, Half Marathon, 5K
Weott, California
Sun 11 Oct 26
$64.85 - $154.95
Spooky Dam 5k, 10k, 15k, Half Marathon
Sylmar, Los Angeles
Sat 17 Oct 26
$26.99 - $40.99
Heart of Cool Trail Run
Cool, California
Sat 17 Oct 26
$48.70 - $82.62
5.0
Back to the Future: 88 MPH Dash 5K, 10K & Half
Canoga Park, California
Sat 17 Oct 26
$34.99
Night of the Living Runners – 5K, 10K, 10-Miler, Half Marathon
Long Beach, California
Sat 17 Oct 26
$26.97 - $41.81
Witches Wave - Halloween Run 5K, 10K, and Half Marathon by Califlow Runs
Huntington Beach, California
Sun 18 Oct 26
$16.90 - $69.89
Fleet Feet Fall Classic - Trail October 18th, 2026
Chico, California
Sun 18 Oct 26
$48.70 - $101.70
MISSION INN FOUNDATION RUN
Riverside, California
Sun 18 Oct 26
$28.29 - $113.69
2026 - City to the Sea Half Marathon & 5K
San Luis Obispo, California
Sun 18 Oct 26
$54.00 - $133.50
Newport Spirit Run
Newport Beach, Orange
Sun 18 Oct 26
$32.00 - $143.00
Jeepers Creepers Marathon
Santa Clarita, Los Angeles
Sun 18 Oct 26
$165.00
Malibu Moves: Half Marathon, 10K, 5K, 1-Mi & 1K
Malibu, California
Sat 24 Oct 26
Free - $243.92
Monster Dash 5k, 10k, 15k, Half Marathon
Long Beach, Los Angeles
Sat 24 Oct 26
$22.99 - $37.99
The Praise Run 2026
Victorville, California
Sat 24 Oct 26
$49.00 - $89.00
RunThrough USA Long Beach 5k,10k & Half Marathon Race
Long Beach, California
Sat 24 Oct 26
$49.00 - $80.50
Spooky Shuffle – 5k, 10k, Half Marathon
Van Nuys, California
Sun 25 Oct 26
$32.27 - $48.70
Trick or Trot 5K, 10K, and Half Marathon by Califlow Runs
Long Beach, California
Sun 25 Oct 26
$16.90 - $69.89
Haunted Valley 5k, 10k, 15k, Half Marathon
Simi Valley, Ventura
Sun 25 Oct 26
$25.99 - $39.99
DIA DE LOS MUERTOS HALF MARATHON & 5K RUN/WALK (BAKERSFIELD)
Bakersfield, California
Fri 30 Oct 26
$28.00 - $99.02
Halloween Trick or Trot Run 5K/10K/13.1 SAN FRANCISCO
San Francisco, California
Sat 31 Oct 26
$32.80 - $54.00
Happy Halloween 5k, 10k, 15k, Half Marathon
Long Beach, Los Angeles
Sat 31 Oct 26
$23.99 - $37.99
PB&J Fuel Run 5K/10K/13.1 SAN FRANCISCO
San Francisco, California
Sat 31 Oct 26
$32.80 - $54.00
ZombieRunner Halloween
San Jose, California
Sat 31 Oct 26
Free - $85.80
PB&J Fuel Run 5K/10K/13.1 SAN DIEGO
San Diego, California
Sat 31 Oct 26
$32.80 - $54.00
Halloween Trick or Trot Run 5K/10K/13.1 LOS ANGELES
Los Angeles, California
Sat 31 Oct 26
$32.80 - $54.00
PB&J Fuel Run 5K/10K/13.1 LOS ANGELES
Los Angeles, California
Sat 31 Oct 26
$32.80 - $54.00
Halloween Trick or Trot Run 5K/10K/13.1 SAN DIEGO
San Diego, California
Sat 31 Oct 26
$32.80 - $54.00
Ventura Galloway Training Program
Camarillo, California
Sat 06 Jun 26 - Sun 11 Oct 26
$211.94
Showing 1-40 of 42 results
