Running races in or near Lake Forest, CA
Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more
See below for a frequently-updated, comprehensive list of upcoming running events in the local Lake Forest, 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-15K - Individual Age group/open
Organization: ABWR
Date of Race: 03-30-2025
Description: ABWR has teamed up with two local charities to help with ...
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Running-10K - Individual Age group/open
Organization: ABWR
Date of Race: 03-30-2025
Description: ABWR has teamed up with two local charities to help with ...
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Running-5K - Individual Age group/open
Organization: University High School PTSA
Date of Race: 02-08-2025
Description: 2025 Trojan Trot 5K Fun Run! Register by January 24th ...
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Running-Half marathon - Individual Age group/open
Organization: ABWR
Date of Race: 03-30-2025
Description: ABWR has teamed up with two local charities to help with ...
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Bubble Run - VIP Registration
Organization: Viral Run
Date of Race: 11-08-2025
Description: If you’ve done a traditional 5K, you know ...
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University HS Student/Staff: Running-5K - University HS Student/Staff: ...
Organization: University High School PTSA
Date of Race: 02-08-2025
Description: 2025 Trojan Trot 5K Fun Run! Register by January 24th ...
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Muddy Dash - Standard Registration
Organization: Viral Run
Date of Race: 06-21-2025
Description: Muddy Dash is not your average mud run! Get ready for ...
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3K Open Run - Individual Age group/open
Organization: SJC Community Run
Date of Race: 05-17-2025
Description: This will ...
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Run-Walk-Skip 1M Fun Run - Run-Walk-Skip Fun Run: ...
Organization: University High School PTSA
Date of Race: 02-08-2025
Description: 2025 Trojan Trot 5K Fun Run! Register by January 24th ...
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Muddy Dash - Value Registration
Organization: Viral Run
Date of Race: 06-21-2025
Description: Muddy Dash is not your average mud run! Get ready for ...
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Muddy Dash - VIP Registration 💎
Organization: Viral Run
Date of Race: 06-21-2025
Description: Muddy Dash is not your average mud run! Get ready for ...
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5K Open Run - Individual Age group/open
Organization: SJC Community Run
Date of Race: 05-17-2025
Description: This will ...
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1K Open Run - Individual Age group/open
Organization: SJC Community Run
Date of Race: 05-17-2025
Description: This will ...
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Muddy Dash | Lake Elsinore | June 21
Organization: Viral Run
Date of Race: 06-21-2025
Description: Muddy Dash is not your average mud run! Get ready for ...
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La Habra Run 5K Runners
Organization: City of La Habra Community Services Department
Date of Race: 03-08-2025
Description: DescriptionThe La Habra Races Registration is now closed. You can still ...
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La Habra Run 50-Yard Diaper Dash Runners
Organization: City of La Habra Community Services Department
Date of Race: 03-08-2025
Description: DescriptionThe La Habra Races Registration is now closed. You can still ...
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La Habra Run 5K Runners
Organization: City of La Habra Community Services Department
Date of Race: 03-08-2025
Description: DescriptionThe La Habra Races Registration is now closed. You can still ...
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La Habra Run 1K Kiddy Runners
Organization: City of La Habra Community Services Department
Date of Race: 03-08-2025
Description: DescriptionThe La Habra Races Registration is now closed. You can still ...
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La Habra Run 5K Runners
Organization: City of La Habra Community Services Department
Date of Race: 03-08-2025
Description: DescriptionThe La Habra Races Registration is now closed. You can still ...
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La Habra Run 50-Yard Diaper Dash Runners
Organization: City of La Habra Community Services Department
Date of Race: 03-08-2025
Description: DescriptionThe La Habra Races Registration is now closed. You can still ...
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La Habra Run 50-Yard Diaper Dash Runners
Organization: City of La Habra Community Services Department
Date of Race: 03-08-2025
Description: DescriptionThe La Habra Races Registration is now closed. You can still ...
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La Habra Run 1K Kiddy Runners
Organization: City of La Habra Community Services Department
Date of Race: 03-08-2025
Description: DescriptionThe La Habra Races Registration is now closed. You can still ...
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La Habra Run 5K Runners
Organization: City of La Habra Community Services Department
Date of Race: 03-08-2025
Description: DescriptionThe La Habra Races Registration is now closed. You can still ...
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La Habra Run 1K Kiddy Runners
Organization: City of La Habra Community Services Department
Date of Race: 03-08-2025
Description: DescriptionThe La Habra Races Registration is now closed. You can still ...
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La Habra Run 1K Kiddy Runners
Organization: City of La Habra Community Services Department
Date of Race: 03-08-2025
Description: DescriptionThe La Habra Races Registration is now closed. You can still ...
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Complete list of running events in and near Lake Forest, CA: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about Lake Forest
About Lake Forest
Lake Forest (CA) is a city in Orange County with an estimated population of 77,264.[4]
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Did you know?
There were at least 768 marathons scheduled in the United States and Canada in 2016.
