Upcoming 5K Races In California, US in January, 2026

Name: 2026 Surf City Marathon & Half Marathon
Start: 2026-01-31
End: 2026-01-31
Location: Huntington Beach

Have a Heart for Kids 5K Run/Walk

Yuba City, CA

Thursday, January 1st, 2026

View details for race Have a Heart for Kids 5K Run/Walk

Free New Year's Day 5k by Chico Running Club

Chico, CA

Thursday, January 1st, 2026

View details for race Free New Year's Day 5k by Chico Running Club

Auburn Resolution Run

Auburn, CA

Thursday, January 1st, 2026

10K

10 Miles

Trail

View details for race Auburn Resolution Run

KIWANIS RESOLUTION 5K Run/Walk, and 10K Run/Walk

Mountain View, CA

Saturday, January 3rd, 2026

10K

View details for race KIWANIS RESOLUTION 5K Run/Walk, and 10K Run/Walk

Chase the Falling Stars - Quadrantid Meteor Sh...

Santa Monica, CA

Saturday, January 3rd, 2026

1 Mile

Half

View details for race Chase the Falling Stars - Quadrantid Meteor Shower 5K 10K & Half Marathon

The New Year's Duathlon & 5K Run

Granite Bay, CA

Saturday, January 3rd, 2026

Trail

View details for race The New Year's Duathlon & 5K Run

Dia De Los Reyes Magos - Bakersfield

Bakersfield, CA

Saturday, January 3rd, 2026

Half

View details for race Dia De Los Reyes Magos - Bakersfield

Dia De Los Reyes Magos - Fresno

Fresno, CA

Sunday, January 4th, 2026

Half

View details for race Dia De Los Reyes Magos - Fresno

Grievances & Gratitude Run – Let Go, Run Free, ...

Long Beach, CA

Sunday, January 4th, 2026

10K

Half

View details for race Grievances & Gratitude Run – Let Go, Run Free, Embrace the Positive! 5K, 10K, and Half Marathon

The Running Chicken 2025 10K/5K Fun Run & Walk ...

Santa Margarita, CA

Sunday, January 4th, 2026

10K

View details for race The Running Chicken 2025 10K/5K Fun Run & Walk - Fundraiser for Run 4 Bitti and Brynn Foundation

San Diego 50 & Trail Runs

Escondido, CA

Saturday, January 10th, 2026

Ultra

Marathon

Half

Trail

Fast

View details for race San Diego 50 & Trail Runs

The Encino Man Ice Age Dash

Canoga Park, CA

Saturday, January 10th, 2026

10K

Half

Fast

View details for race The Encino Man Ice Age Dash

The IPA Trail Runs

Granite Bay, CA

Saturday, January 10th, 2026

Trail

View details for race The IPA Trail Runs

Hope in Every Step 5k

Modesto, CA

Saturday, January 10th, 2026

View details for race Hope in Every Step 5k

Citrus Heritage Run

Riverside, CA

Saturday, January 10th, 2026

10K

1 Mile

View details for race Citrus Heritage Run

The Master's University Winter 5K

Santa Clarita, CA

Saturday, January 17th, 2026

View details for race The Master's University Winter 5K

The Redding Marathon Events

Redding, CA

Sunday, January 18th, 2026

Marathon

View details for race The Redding Marathon Events

The Gumby 5K & 10K Trail Runs

Granite Bay, CA

Saturday, January 24th, 2026

Trail

View details for race The Gumby 5K & 10K Trail Runs

Do It For Her 5K

Temecula, CA

Sunday, January 25th, 2026

View details for race Do It For Her 5K

Fullerton 5k

Fullerton, CA

Sunday, January 25th, 2026

View details for race Fullerton 5k

2026 Disneyland® Half Marathon Weekend presente...

Anaheim, CA

Friday, January 30th, 2026

10K

Half

View details for race 2026 Disneyland® Half Marathon Weekend presented by HONDA

Teaching & Learning Collaborative Charity Group...

Anaheim, CA

Friday, January 30th, 2026

10K

Half

View details for race Teaching & Learning Collaborative Charity Group Registration (2026 Disneyland® Half Marathon Weekend)

2026 Surf City Marathon & Half Marathon

Huntington Beach, CA

Saturday, January 31st, 2026

Half

Marathon

View details for race 2026 Surf City Marathon & Half Marathon

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