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Races in Fullerton, CA

Running races in or near Fullerton, CA

Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more

See below for a frequently-updated, comprehensive list of upcoming running events in the local Fullerton, CA area. Races listed here include both walking and running events of various distances — from 1-milers, to 5Ks, to marathons, and everything else in between.

Road Runner Sports

Running-5K - 5k Running

Organization: Doggy Dash Cause for Paws

Date of Race: 09-21-2025

Description: Be active and participate in our 5k/10k for a great cause, ...

Running-10K - 10k Running

Organization: Doggy Dash Cause for Paws

Date of Race: 09-21-2025

Description: Be active and participate in our 5k/10k for a great cause, ...

Instride Running

Organization: City of Downey

Date of Race: 07-14-2025

Description: DescriptionInstride Running Club is a youth group that trains for ...

Instride Running

Organization: City of Downey

Date of Race: 07-14-2025

Description: DescriptionInstride Running Club is a youth group that trains for ...

Instride Running

Organization: City of Downey

Date of Race: 07-14-2025

Description: DescriptionInstride Running Club is a youth group that trains for ...

Running-5K - Individual Age group/open

Organization: ABWR

Date of Race: 08-03-2025

Description: ABWR has teamed up with two local charities to help ...

Running-5K - Individual Age group/open

Organization: ABWR

Date of Race: 09-06-2025

Description: ABWR has teamed up with two local charities to help ...

Running-15K - Individual Age group/open

Organization: ABWR

Date of Race: 09-06-2025

Description: ABWR has teamed up with two local charities to help ...

Running-5K - Individual Age group/open

Organization: ABWR

Date of Race: 10-18-2025

Description: It's time for our Spooktacular 5k, 10k, 15k, Half Marathon fun ...

Running-5K - Individual Age group/open

Organization: ABWR

Date of Race: 12-20-2025

Description: It's time for our Reindeer Run 5k, 10k, 15k, Half Marathon ...

Running-10K - Individual Age group/open

Organization: ABWR

Date of Race: 12-20-2025

Description: It's time for our Reindeer Run 5k, 10k, 15k, Half Marathon ...

Running-15K - Individual Age group/open

Organization: ABWR

Date of Race: 09-27-2025

Description: ABWR has teamed up with two local charities to help with ...

Running-10K - Individual Age group/open

Organization: ABWR

Date of Race: 11-30-2025

Description: It's time for our 4th race series! Our Turkey ...

Running-15K - Individual Age group/open

Organization: ABWR

Date of Race: 08-17-2025

Description: ABWR has teamed up with two local charities to help ...

Running-10K - Individual Age group/open

Organization: ABWR

Date of Race: 08-03-2025

Description: ABWR has teamed up with two local charities to help ...

Running-15K - Individual Age group/open

Organization: ABWR

Date of Race: 11-01-2025

Description: It's time for our Runacopia 5k, 10k, ...

Running-5K - Individual Age group/open

Organization: ABWR

Date of Race: 11-22-2025

Description: It's time for our Giving Thanks 5k, 10k, ...

Running-5K - Individual Age group/open

Organization: ABWR

Date of Race: 11-28-2025

Description: It's time for our Tukey Trot 5k, 10k, ...

Running-15K - Individual Age group/open

Organization: ABWR

Date of Race: 11-28-2025

Description: It's time for our Tukey Trot 5k, 10k, ...

Running-5K - Individual Age group/open

Organization: ABWR

Date of Race: 12-24-2025

Description: It's time for our Happy Holidays 5k, 10k, 15k, Half Marathon ...

Running-10K - Individual Age group/open

Organization: ABWR

Date of Race: 12-24-2025

Description: It's time for our Happy Holidays 5k, 10k, 15k, Half Marathon ...

Running-10K - Individual Age group/open

Organization: ABWR

Date of Race: 12-06-2025

Description: It's time for our Season's Greetings 5k, 10k, 15k, Half Marathon ...

Running-10K - Individual Age group/open

Organization: ABWR

Date of Race: 08-02-2025

Description: It's time for our Summer Time/Summer Break 5k, 10k, 15k, Half ...

Running-5K - Individual Age group/open

Organization: ABWR

Date of Race: 09-01-2025

Description: ABWR has teamed up with two local charities to help ...

Running-10K - Individual Age group/open

Organization: ABWR

Date of Race: 09-01-2025

Description: ABWR has teamed up with two local charities to help ...

Saucony

Complete list of running events in and near Fullerton, CA: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.


More information about Fullerton

About Fullerton

Fullerton (CA) is a city in Orange County with an estimated population of 135,161.[4]

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Did you know?

Historically, more marathons are run in the month of October than any other month (in the U.S.).

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