Upcoming Half Marathon Races Near Santa Monica, CA in October, 2025

Name: Halloween Havoc – 5K, 10K, and Half Marathon
Start: 2025-10-26
End: 2025-10-26
Location: Fountain Valley

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Run Tiburon UCSF Courage Over Cancer 10K & 5K

Belvedere Tiburon, CA

Sunday, September 7th, 2025

Featured

10K

View details for race Run Tiburon UCSF Courage Over Cancer 10K & 5K

Monster Mash Dash 5K, 10K, and Half Marathon

Santa Monica, CA

Saturday, October 4th, 2025

10K

Half

View details for race Monster Mash Dash 5K, 10K, and Half Marathon

2025 Long Beach Marathon & Half Marathon

Long Beach, CA

Saturday, October 4th, 2025

Half

Marathon

View details for race 2025 Long Beach Marathon & Half Marathon

Haunted Heroes 5k, 10k, 15k, Half Marathon

Los Angeles, CA

Saturday, October 11th, 2025

10K

15K

Half

View details for race Haunted Heroes 5k, 10k, 15k, Half Marathon

Gobble Ghoul and Holly Run 5K, 10K, and Half Ma...

Santa Monica, CA

Saturday, October 11th, 2025

10K

Half

View details for race Gobble Ghoul and Holly Run 5K, 10K, and Half Marathon

Night of the Living Runners – 5K, 10K, 10M, and...

Long Beach, CA

Saturday, October 11th, 2025

10K

10 Miles

View details for race Night of the Living Runners – 5K, 10K, 10M, and Half Marathon

Gobble Ghoul and Holly Run 5K, 10K, and Half Ma...

Long Beach, CA

Sunday, October 12th, 2025

10K

Half

View details for race Gobble Ghoul and Holly Run 5K, 10K, and Half Marathon

the Wicked Boo Dash 5K, 10K, and Half Marathon

Santa Monica, CA

Sunday, October 12th, 2025

10K

Half

View details for race the Wicked Boo Dash 5K, 10K, and Half Marathon

Spooktacular 5k, 10k, 15k, Half Marathon

Long beach, CA

Saturday, October 18th, 2025

15K

10K

View details for race Spooktacular 5k, 10k, 15k, Half Marathon

2025 SPACEROCK Trail Race

Agua Dulce, CA

Saturday, October 18th, 2025

10K

15K

View details for race 2025 SPACEROCK Trail Race

Hallo-Thanks-Mas – 5K, 10K, and Half Marathon

Santa Monica, CA

Saturday, October 18th, 2025

10K

Half

View details for race Hallo-Thanks-Mas – 5K, 10K, and Half Marathon

Frightful Finish Line - Halloween Run 5K, 10K, ...

Long Beach, CA

Sunday, October 19th, 2025

10K

Half

View details for race Frightful Finish Line - Halloween Run 5K, 10K, & Half Marathon

The Ghostly Gallup – 5K, 10K, 10 Miler, and Hal...

Long Beach, CA

Sunday, October 19th, 2025

10K

15K

View details for race The Ghostly Gallup – 5K, 10K, 10 Miler, and Half Marathon

Malibu Moves: 5K, 10K, Half Marathon & Kids Run

Malibu, CA

Saturday, October 25th, 2025

Half

View details for race Malibu Moves: 5K, 10K, Half Marathon & Kids Run

Monster Dash 5k, 10k, 15k, Half Marathon

Long beach, CA

Saturday, October 25th, 2025

10K

Half

View details for race Monster Dash 5k, 10k, 15k, Half Marathon

The Witches’ Brew Run 5K, 10K, & Half Marathon

Santa Monica, CA

Saturday, October 25th, 2025

10K

Half

View details for race The Witches’ Brew Run 5K, 10K, & Half Marathon

Trick or Trot 5K, 10K, and Half Marathon

Long Beach, CA

Sunday, October 26th, 2025

10K

Half

View details for race Trick or Trot 5K, 10K, and Half Marathon

Monster Dash 5k, 10k, 15k, Half Marathon YL

Anaheim, CA

Sunday, October 26th, 2025

Half

15K

View details for race Monster Dash 5k, 10k, 15k, Half Marathon YL

Halloween Havoc – 5K, 10K, and Half Marathon

Fountain Valley, CA

Sunday, October 26th, 2025

10K

Half

View details for race Halloween Havoc – 5K, 10K, and Half Marathon