Running races in or near Placentia, CA
Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more
See below for a frequently-updated, comprehensive list of upcoming running events in the local Placentia, 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.
Instride Running
Organization: City of Downey
Date of Race: 07-06-2026
Description: DescriptionInstride Running Club is a youth group that trains for ...
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Instride Running
Organization: City of Downey
Date of Race: 07-06-2026
Description: DescriptionInstride Running Club is a youth group that trains for ...
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Instride Running
Organization: City of Downey
Date of Race: 07-06-2026
Description: DescriptionInstride Running Club is a youth group that trains for ...
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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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Cross Country Running (Spring)
Organization: San Marino Summer Academy
Date of Race: 06-29-2026
Description: $315 tuition + $25 registration
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Cross Country Running (Spring)
Organization: San Marino Summer Academy
Date of Race: 06-29-2026
Description: Cross Country Running (Fall only) Instructor: Jacques Sallberg Grades: 8-12 Spring ...
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Cross Country Running (Fall)
Organization: San Marino Summer Academy
Date of Race: 06-08-2026
Description: Cross Country Running (Fall only) Instructor: Jacques Sallberg Grades: 8-12 Fall ...
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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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Cross Country Running (Fall)
Organization: San Marino Summer Academy
Date of Race: 06-08-2026
Description: $315 Tuition + $25 Registration fee
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Cross Country Running (both semesters)
Organization: San Marino Summer Academy
Date of Race: 06-08-2026
Description: Cross Country Running (both semesters) Instructor: Jacques Sallberg Grades: 8-12 Fall ...
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Cross Country Running (both semesters)
Organization: San Marino Summer Academy
Date of Race: 06-08-2026
Description: $530 tuition + $25 registration
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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: 11-28-2026
Description: Come on out and join us for the Spring Equinox 5k, ...
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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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Complete list of running events in and near Placentia, CA: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about Placentia
About Placentia
Placentia (CA) is a city in Orange County with an estimated population of 50,533.[4]
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Did you know?
In 2014, there were more than 1,100 marathons and more than 541,000 finishers in the U.S.
