Running races in or near Brea, CA
Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more
See below for a frequently-updated, comprehensive list of upcoming running events in the local Brea, 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.
Running 100 Session 3
Organization: City of Downey
Date of Race: 05-25-2026
Description: DescriptionInstride Running Club is a youth group that trains for track, ...
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Running 100 Session 3
Organization: City of Downey
Date of Race: 05-25-2026
Description: DescriptionInstride Running Club is a youth group that trains for track, ...
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Running-5K - Individual Age group/open
Organization: ABWR
Date of Race: 07-04-2026
Description: It's time for our Independence Day 5k, 10k, 15k, Half Marathon ...
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Running-10K - Individual Age group/open
Organization: ABWR
Date of Race: 08-15-2026
Description: It's time for our Summer Sensation 5k, 10k, 15k, Half Marathon ...
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Running-10K - Individual Age group/open
Organization: ABWR
Date of Race: 08-08-2026
Description: It's time for our Lucky 8 5k, 10k, 15k, Half Marathon ...
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Running-15K - Individual Age group/open
Organization: ABWR
Date of Race: 09-13-2026
Description: It's time for our Beach Fun 5k, 10k, 15k, Half Marathon ...
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Running-5K - Individual Age group/open
Organization: ABWR
Date of Race: 09-07-2026
Description: It's time for our Labor Day 5k, 10k, 15k, Half Marathon ...
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Running-15K - Individual Age group/open
Organization: ABWR
Date of Race: 10-03-2026
Description: It's time for our Spooky Dash 5k, 10k, 15k, Half Marathon ...
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Running-10K - Individual Age group/open
Organization: ABWR
Date of Race: 10-31-2026
Description: It's time for our Happy Halloween 5k, 10k, 15k, Half Marathon ...
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Running-5K - Individual Age group/open
Organization: ABWR
Date of Race: 07-03-2026
Description: It's time for our Stars and Stripes 5k, 10k, 15k, Half ...
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Running-15K - Individual Age group/open
Organization: ABWR
Date of Race: 07-03-2026
Description: It's time for our Stars and Stripes 5k, 10k, 15k, Half ...
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Running-5K - Individual Age group/open
Organization: ABWR
Date of Race: 08-15-2026
Description: It's time for our Summer Sensation 5k, 10k, 15k, Half Marathon ...
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Running-15K - Individual Age group/open
Organization: ABWR
Date of Race: 08-15-2026
Description: It's time for our Summer Sensation 5k, 10k, 15k, Half Marathon ...
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Running-15K - Individual Age group/open
Organization: ABWR
Date of Race: 07-19-2026
Description: It's time for our Rockin' Summer 5k, 10k, 15k, Half Marathon ...
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Running-10K - Individual Age group/open
Organization: ABWR
Date of Race: 09-13-2026
Description: It's time for our Beach Fun 5k, 10k, 15k, Half Marathon ...
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Running-10K - Individual Age group/open
Organization: ABWR
Date of Race: 09-07-2026
Description: It's time for our Labor Day 5k, 10k, 15k, Half Marathon ...
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Running-15K - Individual Age group/open
Organization: ABWR
Date of Race: 09-05-2026
Description: It's time for our Beach Day 5k, 10k, 15k, Half Marathon ...
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Running-5K - Individual Age group/open
Organization: ABWR
Date of Race: 10-31-2026
Description: It's time for our Happy Halloween 5k, 10k, 15k, Half Marathon ...
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Running-15K - Individual Age group/open
Organization: ABWR
Date of Race: 10-24-2026
Description: It's time for our Monster Dash 5k, 10k, 15k, Half Marathon ...
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Running-5K - Individual Age group/open
Organization: ABWR
Date of Race: 10-03-2026
Description: It's time for our Spooky Dash 5k, 10k, 15k, Half Marathon ...
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Running-10K - Individual Age group/open
Organization: ABWR
Date of Race: 07-03-2026
Description: It's time for our Stars and Stripes 5k, 10k, 15k, Half ...
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Running-5K - Individual Age group/open
Organization: ABWR
Date of Race: 07-12-2026
Description: It's time for our Summer Break 5k, 10k, 15k, Half Marathon ...
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Running-15K - Individual Age group/open
Organization: ABWR
Date of Race: 08-22-2026
Description: It's time for our Summer Breeze 5k, 10k, 15k, Half Marathon ...
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Running-15K - Individual Age group/open
Organization: ABWR
Date of Race: 10-31-2026
Description: It's time for our Happy Halloween 5k, 10k, 15k, Half Marathon ...
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Running-10K - Individual Age group/open
Organization: ABWR
Date of Race: 10-24-2026
Description: It's time for our Monster Dash 5k, 10k, 15k, Half Marathon ...
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Complete list of running events in and near Brea, CA: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about Brea
About Brea
Brea (CA) is a city in Orange County with an estimated population of 39,282.[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.).
