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: 11-29-2026
Description: It's time for our 4th race series! Our Turkey ...
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Running-5K - Individual Age group/open
Organization: ABWR
Date of Race: 11-29-2026
Description: It's time for our 4th race series! Our Turkey ...
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Running-10K - Individual Age group/open
Organization: ABWR
Date of Race: 12-31-2026
Description: Celebrate New Year's Eve at the New Year's Eve ...
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Running-15K - Individual Age group/open
Organization: ABWR
Date of Race: 12-31-2026
Description: Celebrate New Year's Eve at the New Year's Eve ...
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Running-10K - Individual Age group/open
Organization: ABWR
Date of Race: 11-29-2026
Description: It's time for our 4th race series! Our Turkey ...
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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 Saturday Turkey Trot ...
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Running-15K - Individual Age group/open
Organization: ABWR
Date of Race: 11-28-2026
Description: Come on out and join us for the Saturday Turkey Trot ...
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Running-5K - Individual Age group/open
Organization: ABWR
Date of Race: 12-31-2026
Description: Celebrate New Year's Eve at the New Year's Eve ...
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Running-5K - Individual Age group/open
Organization: ABWR
Date of Race: 11-28-2026
Description: Come on out and join us for the Saturday Turkey Trot ...
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Running-Half marathon - Individual Age group/open
Organization: ABWR
Date of Race: 11-28-2026
Description: Come on out and join us for the Saturday Turkey Trot ...
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Running-Half Marathon - Individual Age group/open
Organization: ABWR
Date of Race: 11-29-2026
Description: It's time for our 4th race series! Our Turkey ...
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Running-Half Marathon - Individual Age group/open
Organization: ABWR
Date of Race: 12-31-2026
Description: Celebrate New Year's Eve at the New Year's Eve ...
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Muddy Dash - VALUE REGISTRATION - R̶e̶g̶u̶l̶a̶r̶ ...
Organization: Viral Run
Date of Race: 03-13-2027
Description: Muddy Dash is not your average mud run! Get ready for ...
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2026 World Help Turkey Wobble
Organization: World Help - TW
Date of Race: 11-26-2026
Description: World Help Turkey Wobble 2026 The World Help Turkey Wobble is ...
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Muddy Dash - Exclusive VIP Registration - ...
Organization: Viral Run
Date of Race: 03-13-2027
Description: Muddy Dash is not your average mud run! Get ready for ...
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5K/10K - Kids Price
Organization: World Help - TW
Date of Race: 11-26-2026
Description: World Help Turkey Wobble 2026 The World Help Turkey Wobble is ...
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5K/10K - 7:40am
Organization: World Help - TW
Date of Race: 11-26-2026
Description: World Help Turkey Wobble 2026 The World Help Turkey Wobble is ...
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5K/10K - 8:40am
Organization: World Help - TW
Date of Race: 11-26-2026
Description: World Help Turkey Wobble 2026 The World Help Turkey Wobble is ...
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Muddy Dash - VALUE REGISTRATION - R̶e̶g̶u̶l̶a̶r̶ ...
Organization: Viral Run
Date of Race: 03-06-2027
Description: Muddy Dash is not your average mud run! Get ready for ...
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New Years Eve 5k, 10k, 15k, Half Marathon
Organization: ABWR
Date of Race: 12-31-2026
Description: Celebrate New Year's Eve at the New Year's Eve ...
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5K/10K - 8:00am
Organization: World Help - TW
Date of Race: 11-26-2026
Description: World Help Turkey Wobble 2026 The World Help Turkey Wobble is ...
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Muddy Dash - Exclusive VIP Registration - ...
Organization: Viral Run
Date of Race: 03-06-2027
Description: Muddy Dash is not your average mud run! Get ready for ...
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Muddy Dash | Lake Elsinore 2027
Organization: Viral Run
Date of Race: 03-13-2027
Description: Muddy Dash is not your average mud run! Get ready for ...
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Turkey Trot (Saturday) 5k, 10k, 15k, Half Marathon
Organization: ABWR
Date of Race: 11-28-2026
Description: Come on out and join us for the Saturday Turkey Trot ...
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Muddy Dash | Irvine 2027
Organization: Viral Run
Date of Race: 03-06-2027
Description: Muddy Dash is not your average mud run! Get ready for ...
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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?
In 2014, there were more than 1,100 marathons and more than 541,000 finishers in the U.S.
