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Upcoming Half Marathon Races Near Altadena, CA

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Disneyland® Halloween Half Marathon Weekend 2025 logo

Disneyland® Halloween Half Marathon Weekend 2025

Anaheim, CA

Friday, September 5th, 2025

5K
10K
Half
View details for race Disneyland® Halloween Half Marathon Weekend 2025
Beach Fun 5k, 10k, 15k, Half Marathon logo

Beach Fun 5k, 10k, 15k, Half Marathon

Long beach, CA

Saturday, September 6th, 2025

15K
10K
Half
View details for race Beach Fun 5k, 10k, 15k, Half Marathon
Hot to Trot 5k, 10k, 15k, Half Marathon logo

Hot to Trot 5k, 10k, 15k, Half Marathon

Riverside, CA

Sunday, September 7th, 2025

5K
10K
Half
View details for race Hot to Trot 5k, 10k, 15k, Half Marathon
National Chocolate Day: Run for Chocolates LOS ANGELES logo

National Chocolate Day: Run for Chocolates LOS ...

Los Angeles, CA

Saturday, September 13th, 2025

10K
1 Mile
5K
View details for race National Chocolate Day: Run for Chocolates LOS ANGELES
Runvana: A Totally 90s Run 5K, 10K, Half Marathon logo

Runvana: A Totally 90s Run 5K, 10K, Half Marathon

Long Beach, CA

Saturday, September 13th, 2025

5K
10K
Half
View details for race Runvana: A Totally 90s Run 5K, 10K, Half Marathon
Sweatember Dash - The Heat is on 5K, 10k, & Half Marathon logo

Sweatember Dash - The Heat is on 5K, 10k, & Hal...

Santa Monica, CA

Saturday, September 13th, 2025

10K
5K
Half
View details for race Sweatember Dash - The Heat is on 5K, 10k, & Half Marathon
Oh my Gourd - Falling for Miles 5K, 10K, & Half Marathon logo

Oh my Gourd - Falling for Miles 5K, 10K, & Half...

Long Beach, CA

Sunday, September 14th, 2025

5K
10K
Half
View details for race Oh my Gourd - Falling for Miles 5K, 10K, & Half Marathon
Pirates Plunder – 5K, 10K, and Half Marathon logo

Pirates Plunder – 5K, 10K, and Half Marathon

Santa Monica, CA

Sunday, September 14th, 2025

10K
5K
Half
View details for race Pirates Plunder – 5K, 10K, and Half Marathon
Totally 80's Fast Times in Huntington Beach 5K, 10K, & Half Marathon logo

Totally 80's Fast Times in Huntington Beach 5K,...

Huntington Beach, CA

Sunday, September 14th, 2025

5K
10K
Half
Fast
View details for race Totally 80's Fast Times in Huntington Beach 5K, 10K, & Half Marathon
80s Rewind Dash – 5K, 10K, 10-miler, and Half Marathon logo

80s Rewind Dash – 5K, 10K, 10-miler, and Half ...

Long Beach, CA

Sunday, September 14th, 2025

5K
10K
Half
View details for race 80s Rewind Dash – 5K, 10K, 10-miler, and Half Marathon
Bayside Saved by the Bell 5K, 10K & Half Marathon logo

Bayside Saved by the Bell 5K, 10K & Half Marathon

Canoga Park, CA

Saturday, September 20th, 2025

5K
10K
Half
Fast
View details for race Bayside Saved by the Bell 5K, 10K & Half Marathon
Harvest Moon – 5K, 10k, and Half Marathon logo

Harvest Moon – 5K, 10k, and Half Marathon

Santa Monica, CA

Saturday, September 20th, 2025

10K
5K
Half
View details for race Harvest Moon – 5K, 10k, and Half Marathon
The Great American Pizza Run logo

The Great American Pizza Run

Long Beach, CA

Saturday, September 20th, 2025

5K
10K
Half
Fast
View details for race The Great American Pizza Run
Run with the Pack - Harvest Moon Run 5K, 10K logo

Run with the Pack - Harvest Moon Run 5K, 10K

Santa Monica, CA

Sunday, September 21st, 2025

10K
5K
Half
View details for race Run with the Pack - Harvest Moon Run 5K, 10K
Jurassic Jaunt – 5K, 10K, 10M, and Half Marathon logo

Jurassic Jaunt – 5K, 10K, 10M, and Half Marathon

Long Beach, CA

Sunday, September 21st, 2025

5K
10K
Half
View details for race Jurassic Jaunt – 5K, 10K, 10M, and Half Marathon
National Coffee Day: Run for Coffee LOS ANGELES logo

National Coffee Day: Run for Coffee LOS ANGELES

Los Angeles, CA

Saturday, September 27th, 2025

5K
10K
Half
Fast
View details for race National Coffee Day: Run for Coffee LOS ANGELES
National Singles Day: Singles & Friends Running Club LOS ANGELES logo

National Singles Day: Singles & Friends Running...

Los Angeles, CA

Saturday, September 27th, 2025

5K
10K
Half
View details for race National Singles Day: Singles & Friends Running Club LOS ANGELES
Hot Pursuit 5k, 10k, 15k, Half Marathon logo

Hot Pursuit 5k, 10k, 15k, Half Marathon

Long beach, CA

Saturday, September 27th, 2025

10K
5K
15K
View details for race Hot Pursuit 5k, 10k, 15k, Half Marathon
Harvest Moon Trot – 5K, 10k, 10m, and Half Marathon logo

Harvest Moon Trot – 5K, 10k, 10m, and Half Mara...

Long beach, CA

Sunday, September 28th, 2025

5K
10K
10 Miles
View details for race Harvest Moon Trot – 5K, 10k, 10m, and Half Marathon
90s Remix Run – 5K, 10k, 10m, and Half Marathon logo

90s Remix Run – 5K, 10k, 10m, and Half Marathon

Long Beach, CA

Sunday, September 28th, 2025

5K
10K
10 Miles
View details for race 90s Remix Run – 5K, 10k, 10m, and Half Marathon
2025 2XU Long Beach Marathon & Half Marathon logo

2025 2XU Long Beach Marathon & Half Marathon

Long Beach, CA

Saturday, October 4th, 2025

5K
Marathon
Half
View details for race 2025 2XU Long Beach Marathon & Half Marathon
Monster Mash Dash 5K, 10K, and Half Marathon logo

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

Santa Monica, CA

Saturday, October 4th, 2025

10K
5K
Half
View details for race Monster Mash Dash 5K, 10K, and Half Marathon
Haunted Heroes 5k, 10k, 15k, Half Marathon logo

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

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

Canoga Park, CA

Saturday, October 11th, 2025

5K
10K
Half
Fast
View details for race Fast Times at Canoga High 5K, 10K & Half
Night of the Living Runners – 5K, 10K, 10M, and Half Marathon logo

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

Long Beach, CA

Saturday, October 11th, 2025

5K
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 Marathon logo

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

Santa Monica, CA

Saturday, October 11th, 2025

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

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

Long Beach, CA

Sunday, October 12th, 2025

5K
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 logo

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

Santa Monica, CA

Sunday, October 12th, 2025

10K
5K
Half
View details for race the Wicked Boo Dash 5K, 10K, and Half Marathon
Witches Wave - Halloween Run 5K, 10K, and Half Marathon logo

Witches Wave - Halloween Run 5K, 10K, and Half ...

Huntington Beach, CA

Sunday, October 12th, 2025

5K
10K
Half
View details for race Witches Wave - Halloween Run 5K, 10K, and Half Marathon
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
Hallo-Thanks-Mas Dash – 5K, 10K, and Half Marathon logo

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

Santa Monica, CA

Saturday, October 18th, 2025

10K
5K
Half
View details for race Hallo-Thanks-Mas Dash – 5K, 10K, and 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
Spooktacular 5k, 10k, 15k, Half Marathon logo

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

Long beach, CA

Saturday, October 18th, 2025

15K
5K
10K
View details for race Spooktacular 5k, 10k, 15k, Half Marathon
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
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
MISSION INN RUN logo

MISSION INN RUN

Riverside, CA

Sunday, October 19th, 2025

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

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

Long beach, CA

Saturday, October 25th, 2025

10K
5K
Half
View details for race Monster Dash 5k, 10k, 15k, Half Marathon
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
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
Halloween Hustle 5k, 10k, 15k, Half Marathon logo

Halloween Hustle 5k, 10k, 15k, Half Marathon

Anaheim, CA

Sunday, October 26th, 2025

15K
Half
5K
View details for race Halloween Hustle 5k, 10k, 15k, Half Marathon
Runacopia 5k, 10k, 15k, Half Marathon logo

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

Long beach, CA

Saturday, November 1st, 2025

Half
10K
5K
View details for race Runacopia 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
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
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
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
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

10K
10 Miles
5K
View details for race Donut Runners Rejoice – 5K, 10K, 10m, and Half Marathon
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

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