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Upcoming Half Marathon Races In California, US

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

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

Santa Monica, CA

Saturday, October 18th, 2025

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

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2025 SPACEROCK Trail Race logo

2025 SPACEROCK Trail Race

Agua Dulce, CA

Saturday, October 18th, 2025

10K
15K
5K
Trail
View details for race 2025 SPACEROCK Trail Race
Spooktacular 5k, 10k, 15k, Half Marathon logo

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

Long beach, CA

Saturday, October 18th, 2025

15K
Half
10K
View details for race Spooktacular 5k, 10k, 15k, Half Marathon
Back to the Future: 88 MPH Dash 5K, 10K & Half logo

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

Canoga Park, CA

Saturday, October 18th, 2025

5K
10K
Half
Fast
View details for race Back to the Future: 88 MPH Dash 5K, 10K & Half
Fleet Feet Fall Classic - Trail October 19th, 2025 logo

Fleet Feet Fall Classic - Trail October 19th, 2025

Chico, CA

Sunday, October 19th, 2025

Half
Trail
View details for race Fleet Feet Fall Classic - Trail October 19th, 2025
Frightful Finish Line - Halloween Run 5K, 10K, & Half Marathon logo

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

Long Beach, CA

Sunday, October 19th, 2025

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

Half Moon Bay Pumpkin Run

Half Moon Bay, CA

Sunday, October 19th, 2025

5K
Half
10K
Trail
View details for race Half Moon Bay Pumpkin Run
Jeepers Creepers Half Marathon logo

Jeepers Creepers Half Marathon

Santa Clarita, CA

Sunday, October 19th, 2025

Half
10K
5K
BQ
View details for race Jeepers Creepers Half Marathon
DIA DE LOS MUERTOS HALF MARATHON & 5K RUN/WALK (BAKERSFIELD) logo

DIA DE LOS MUERTOS HALF MARATHON & 5K RUN/WALK ...

Bakersfield, CA

Sunday, October 19th, 2025

Fast
View details for race DIA DE LOS MUERTOS HALF MARATHON & 5K RUN/WALK (BAKERSFIELD)
The Ghostly Gallup – 5K, 10K, 10 Miler, and Half Marathon logo

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

Long Beach, CA

Sunday, October 19th, 2025

5K
10K
15K
View details for race The Ghostly Gallup – 5K, 10K, 10 Miler, and Half Marathon
Heart of Cool Trail Run logo

Heart of Cool Trail Run

Cool, CA

Sunday, October 19th, 2025

5K
10K
Half
Trail
View details for race Heart of Cool Trail Run
MISSION INN RUN logo

MISSION INN RUN

Riverside, CA

Sunday, October 19th, 2025

View details for race MISSION INN RUN
Monster Dash 5k, 10k, 15k, Half Marathon logo

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

Long beach, CA

Saturday, October 25th, 2025

15K
10K
Half
View details for race Monster Dash 5k, 10k, 15k, Half Marathon
Malibu Moves: 5K, 10K, Half Marathon & Kids Run logo

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

Malibu, CA

Saturday, October 25th, 2025

Half
5K
Fast
View details for race Malibu Moves: 5K, 10K, Half Marathon & Kids Run
The Witches’ Brew Run 5K, 10K, & Half Marathon logo

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

Santa Monica, CA

Saturday, October 25th, 2025

10K
5K
Half
Fast
View details for race The Witches’ Brew Run 5K, 10K, & Half Marathon
Santa Cruz Island Eco Extreme Half Marathon 2025 logo

Santa Cruz Island Eco Extreme Half Marathon 2025

Ventura, CA

Saturday, October 25th, 2025

Half
Trail
View details for race Santa Cruz Island Eco Extreme Half Marathon 2025
Beer City Half Bishop Ranch logo

Beer City Half Bishop Ranch

San Ramon, CA

Sunday, October 26th, 2025

Half
10K
5K
View details for race Beer City Half Bishop Ranch
Halloween Havoc – 5K, 10K,  and Half Marathon logo

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

Fountain Valley, CA

Sunday, October 26th, 2025

5K
10K
Half
View details for race Halloween Havoc – 5K, 10K, and Half Marathon
Monster Dash 5k, 10k, 15k, Half Marathon YL logo

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

Anaheim, CA

Sunday, October 26th, 2025

5K
Half
15K
View details for race Monster Dash 5k, 10k, 15k, Half Marathon YL
Trick or Trot 5K, 10K, and Half Marathon logo

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

Long Beach, CA

Sunday, October 26th, 2025

5K
10K
Half
View details for race Trick or Trot 5K, 10K, and Half Marathon
2025 Crown Point Marathon/Half-Marathon, Team Relays, 8K & 5K Runs logo

2025 Crown Point Marathon/Half-Marathon, Team R...

San Diego, CA

Sunday, October 26th, 2025

Marathon
5K
Half
View details for race 2025 Crown Point Marathon/Half-Marathon, Team Relays, 8K & 5K Runs
Monster Dash 5k, 10k, 15k, Half Marathon logo

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

Irvine, CA

Sunday, October 26th, 2025

5K
10K
Half
View details for race Monster Dash 5k, 10k, 15k, Half Marathon
Beer City Half OC logo

Beer City Half OC

Santa Ana, CA

Saturday, November 1st, 2025

Half
10K
5K
Trail
View details for race Beer City Half OC
Joshua Tree Half Marathon logo

Joshua Tree Half Marathon

Joshua Tree, CA

Saturday, November 1st, 2025

Half
View details for race Joshua Tree Half Marathon
Santa Clarita Trail Race logo

Santa Clarita Trail Race

Santa Clarita, CA

Saturday, November 1st, 2025

10K
5K
Half
Trail
View details for race Santa Clarita Trail Race
Thrive San Diego Half Marathon & 5K logo

Thrive San Diego Half Marathon & 5K

San Diego, CA

Saturday, November 1st, 2025

Half
5K
Fast
View details for race Thrive San Diego Half Marathon & 5K
ZombieRunner Halloween logo

ZombieRunner Halloween

San Jose, CA

Saturday, November 1st, 2025

5K
10K
Half
Trail
View details for race ZombieRunner Halloween
Día de los Muertos Run - Huntington Beach 5K, 10K & Half Marathon logo

Día de los Muertos Run - Huntington Beach 5K, 1...

Huntington Beach, CA

Saturday, November 1st, 2025

5K
10K
Half
View details for race Día de los Muertos Run - Huntington Beach 5K, 10K & Half Marathon
Runacopia 5k, 10k, 15k, Half Marathon logo

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

Long beach, CA

Saturday, November 1st, 2025

10K
15K
Half
View details for race Runacopia 5k, 10k, 15k, Half Marathon
IPA10K & Hallowine Half Marathon logo

IPA10K & Hallowine Half Marathon

Sebastopol, CA

Saturday, November 1st, 2025

10K
Half
1 Mile
View details for race IPA10K & Hallowine Half Marathon
2025 PRE-SALE Thrive San Diego Half Marathon & 5K logo

2025 PRE-SALE Thrive San Diego Half Marathon & 5K

San Diego, CA

Saturday, November 1st, 2025

5K
Half
Fast
View details for race 2025 PRE-SALE Thrive San Diego Half Marathon & 5K
Two Cities Marathon logo

Two Cities Marathon

Fresno, CA

Sunday, November 2nd, 2025

Marathon
Half
10K
View details for race Two Cities Marathon
Viva la Vida - Día de los Muertos 5K, 10K, and Half Marathon logo

Viva la Vida - Día de los Muertos 5K, 10K, and ...

Long beach, CA

Sunday, November 2nd, 2025

5K
10K
Half
View details for race Viva la Vida - Día de los Muertos 5K, 10K, and Half Marathon
Clarksburg Country Run logo

Clarksburg Country Run

Clarksburg, CA

Sunday, November 2nd, 2025

Half
10K
5K
View details for race Clarksburg Country Run
2025 Golden Gate Half Marathon & 5K logo

2025 Golden Gate Half Marathon & 5K

San Francisco, CA

Sunday, November 2nd, 2025

5K
Half
View details for race 2025 Golden Gate Half Marathon & 5K
Temecula Half Marathon, 10K, 5K logo

Temecula Half Marathon, 10K, 5K

Temecula, CA

Sunday, November 2nd, 2025

Half
10K
5K
View details for race Temecula Half Marathon, 10K, 5K
Catalina Island Half-Marathon & 10K logo

Catalina Island Half-Marathon & 10K

Avalon, CA

Saturday, November 8th, 2025

Half
10K
Trail
View details for race Catalina Island Half-Marathon & 10K
Lake Chabot Trail Run logo

Lake Chabot Trail Run

Castro Valley, CA

Saturday, November 8th, 2025

Half
Ultra
Marathon
Trail
View details for race Lake Chabot Trail Run
Pulp Fiction: Royale with Speed 5K, 10K & 13.1 logo

Pulp Fiction: Royale with Speed 5K, 10K & 13.1

Canoga Park, CA

Saturday, November 8th, 2025

5K
10K
Half
View details for race Pulp Fiction: Royale with Speed 5K, 10K & 13.1
Donut Runners Rejoice – 5K, 10K, 10M, and Half Marathon logo

Donut Runners Rejoice – 5K, 10K, 10M, and Half ...

Long Beach, CA

Saturday, November 8th, 2025

5K
10K
10 Miles
View details for race Donut Runners Rejoice – 5K, 10K, 10M, and Half Marathon
Honor the Brave 5k, 10k, 15k, Half Marathon logo

Honor the Brave 5k, 10k, 15k, Half Marathon

Long beach, CA

Sunday, November 9th, 2025

10K
15K
Half
View details for race Honor the Brave 5k, 10k, 15k, Half Marathon
2025 Silver Strand Veteran's Day Half Marathon, 10 Miler, 12K & 5K event logo

2025 Silver Strand Veteran's Day Half Marathon,...

Coronado, CA

Sunday, November 9th, 2025

Half
5K
Fast
View details for race 2025 Silver Strand Veteran's Day Half Marathon, 10 Miler, 12K & 5K event
Santa Clarita Marathon logo

Santa Clarita Marathon

Santa Clarita, CA

Sunday, November 9th, 2025

Marathon
Half
10K
BQ
View details for race Santa Clarita Marathon
2025 Southwest Series - Day 6 (CA) logo

2025 Southwest Series - Day 6 (CA)

Nipton, CA

Friday, November 14th, 2025

10K
5K
Half
View details for race 2025 Southwest Series - Day 6 (CA)
2025 Run Malibu logo

2025 Run Malibu

Malibu, CA

Saturday, November 15th, 2025

Half
5K
View details for race 2025 Run Malibu
The Fast and the Feathered – 5K, 10K, and Half Marathon logo

The Fast and the Feathered – 5K, 10K, and Half ...

Santa Monica, CA

Saturday, November 15th, 2025

10K
5K
Half
Fast
View details for race The Fast and the Feathered – 5K, 10K, and Half Marathon
2nd Annual Huffin for the Stuffin- Turkey Trot  5K, 10K, & Half Marathon logo

2nd Annual Huffin for the Stuffin- Turkey Trot ...

Long Beach, CA

Saturday, November 15th, 2025

5K
10K
Half
View details for race 2nd Annual Huffin for the Stuffin- Turkey Trot 5K, 10K, & Half Marathon
Gobble Gallup  5K, 10K, & Half Marathon. logo

Gobble Gallup 5K, 10K, & Half Marathon.

Santa Monica, CA

Sunday, November 16th, 2025

10K
5K
Half
View details for race Gobble Gallup 5K, 10K, & Half Marathon.
Gobble Wobble – 5K, 10K, 10 Miler, and Half Marathon logo

Gobble Wobble – 5K, 10K, 10 Miler, and Half Mar...

Long Beach, CA

Sunday, November 16th, 2025

5K
10K
10 Miles
View details for race Gobble Wobble – 5K, 10K, 10 Miler, and Half Marathon
City to the Sea Half Marathon & 5K logo

City to the Sea Half Marathon & 5K

San Luis Obispo, CA

Sunday, November 16th, 2025

Half
5K
Trail
View details for race City to the Sea Half Marathon & 5K

Explore more in California, US

Distances:

5K10KHalf MarathonMarathon

Months:

OctoberNovemberDecember

Tags:

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