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

Los Angeles, CA

Sat - Oct 11, 2025

Running > 10k, Half Marathon, 5k

Fast Times at Canoga High 5K, 10K & Half

Canoga Park, CA

Sat - Oct 11, 2025

Running > 5k, 10k, Half Marathon

Annual Fredrick Michael Gibson 5K/10K & Half Marathon Walk / Run

Simi Valley, CA

Sun - Oct 12, 2025 @ 7:00 AM

Running > 10k, 5k, Half Marathon

Wicked Wave Halloween Run 5K, 10K, and Half Marathon

Huntington Beach, CA

Sun - Oct 12, 2025

Running > 5k, Half Marathon

Champion Mine Trail Race

Nevada City, CA

Sun - Oct 12, 2025

Running > Half Marathon

Runacopia 5k, 10k, 15k, Half Marathon

Riverside, CA

Oct 12, 2025 - Oct 13, 2025

Running > 10k, 5k, Half Marathon

International Sloth Day Run 5K/10K/13.1 SAN FRANCISCO

San Francisco, CA

Sat - Oct 18, 2025

Running > 5k, 10k, Half Marathon, 1 mile

International Sloth Day Run 5K/10K/13.1 LOS ANGELES

Santa Monica, CA

Sat - Oct 18, 2025

Running > 5k, 10k, Half Marathon, 1 mile

Run Against Breast Cancer 5K/10K/13.1 SAN DIEGO

San Diego, CA

Sat - Oct 18, 2025

Running > 5k, 10k, Half Marathon, 1 mile

Run Against Breast Cancer 5K/10K/13.1 SAN FRANCISCO

San Francisco, CA

Sat - Oct 18, 2025

Running > 5k, 10k, Half Marathon, 1 mile

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

Long Beach, CA

Oct 18, 2025 - Oct 19, 2025

Running > 5k, 10k, Half Marathon

2025 SPACEROCK Trail Race

Agua Dulce, CA

Oct 18, 2025 - Oct 19, 2025

Running > 5k, Half Marathon, 10k

Back to the Future: 88 MPH Dash 5K, 10K & Half

Canoga Park, CA

Sat - Oct 18, 2025

Running > 5k, 10k, Half Marathon

Run Against Breast Cancer 5K/10K/13.1 SACRAMENTO

Sacramento, CA

Sat - Oct 18, 2025

Running > Half Marathon

Frightful Finish Line - Halloween Run 5K, 10K, & Half Marathon

Long Beach, CA

Sun - Oct 19, 2025

Running > Half Marathon, 5k

Jeepers Creepers Half Marathon 5k 10k

Valencia, CA

Sun - Oct 19, 2025 @ 8:00 AM

Running > Half Marathon, 5k, 10k

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Santa Cruz Island Eco Extreme Half Marathon 2025

Ventura, CA

Sat - Oct 25, 2025

Running > Half Marathon

Bikes & Beers Oceanside

Oceanside, CA

Sat - Oct 25, 2025

Running > Half Marathon

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

Long Beach, CA

Oct 25, 2025 - Oct 26, 2025

Running > 10k, 5k, Half Marathon

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

Irvine, CA

Sun - Oct 26, 2025

Running > Half Marathon

2025 Crown Point Marathon/Half-Marathon, Team Relays, 8K & 5K Runs

San Diego, CA

Oct 26, 2025 - Oct 27, 2025

Running > 5k, 8k, Half Marathon, Marathon

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

Anaheim, CA

Oct 26, 2025 - Oct 27, 2025

Running > Half Marathon, 5k, 10k

Beer City Half™ Bishop Ranch

San Ramon, CA

Sun - Oct 26, 2025

Running > Half Marathon

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

San Francisco, CA

Sat - Nov 01, 2025

Running > Half Marathon

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

San Diego, CA

Sat - Nov 01, 2025

Running > 1 mile, 5k, 10k, Half Marathon

Runacopia 5k, 10k, 15k, Half Marathon

Long Beach, CA

Nov 1, 2025 - Nov 2, 2025

Running > Half Marathon, 10k, 5k

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

West Sacramento, CA

Sat - Nov 01, 2025

Running > Half Marathon

Halloween Trick or Trot Run 5K/10K/13.1 LOS ANGELES

Los Angeles, CA

Sat - Nov 01, 2025

Running > 5k, 10k, Half Marathon, 1 mile

Santa Clarita Trail Race

Santa Clarita, CA

Sat - Nov 01, 2025

Running > Half Marathon

Kaiser Permanente Thrive Half Marathon, 5K & Relay

San Diego, CA

Sat - Nov 01, 2025 @ 7:00 AM

Running > Virtual, Relay, Half Marathon, 5k

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