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-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, ...
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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, ...
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Running-5K - Individual Age group/open
Organization: ABWR
Date of Race: 10-26-2025
Description: Come on out and join us for our Monster ...
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Running-10K - Individual Age group/open
Organization: ABWR
Date of Race: 10-26-2025
Description: Come on out and join us for our Monster ...
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Running-5K - Individual Age group/open
Organization: ABWR
Date of Race: 11-30-2025
Description: It's time for our 4th race series! Our Turkey ...
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Running-5K - Individual Age group/open
Organization: University High School PTSA
Date of Race: 02-07-2026
Description: 2026 Trojan Trot 5K Fun Run! Early Bird! ...
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Running-15K - Individual Age group/open
Organization: ABWR
Date of Race: 10-26-2025
Description: Come on out and join us for our Monster ...
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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 ...
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Running-15K - Individual Age group/open
Organization: ABWR
Date of Race: 11-30-2025
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: 11-30-2025
Description: It's time for our 4th race series! Our Turkey ...
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University HS Student/Staff: Running-5K - University HS Student/Staff: ...
Organization: University High School PTSA
Date of Race: 02-07-2026
Description: 2026 Trojan Trot 5K Fun Run! Early Bird! ...
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5K/10K - 8:00am
Organization: World Help - TW
Date of Race: 11-27-2025
Description: Join us for the 13th Annual Huntington Beach Turkey Wobble 5K/10K, ...
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5K/10K - 8:20am
Organization: World Help - TW
Date of Race: 11-27-2025
Description: Join us for the 13th Annual Huntington Beach Turkey Wobble 5K/10K, ...
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Rolling-5K Wheelchair - Individual Age group/open
Organization: Triumph Foundation
Date of Race: 09-13-2025
Description: We're coming BACK for a 3rd round of fun! Our annual ...
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Super Kid - 5K Runner - Individual Age ...
Organization: Triumph Foundation
Date of Race: 09-13-2025
Description: We're coming BACK for a 3rd round of fun! Our annual ...
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Super Kid - 5K - Kids 13 years ...
Organization: Triumph Foundation
Date of Race: 09-13-2025
Description: We're coming BACK for a 3rd round of fun! Our annual ...
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Running or Walking-5K - Individual Age group/open
Organization: Triumph Foundation
Date of Race: 09-13-2025
Description: We're coming BACK for a 3rd round of fun! Our annual ...
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Run-Walk-Skip 1M Fun Run - Run-Walk-Skip Fun Run: ...
Organization: University High School PTSA
Date of Race: 02-07-2026
Description: 2026 Trojan Trot 5K Fun Run! Early Bird! ...
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5K/10K - 8:40am
Organization: World Help - TW
Date of Race: 11-27-2025
Description: Join us for the 13th Annual Huntington Beach Turkey Wobble 5K/10K, ...
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5K/10K - 9:20am
Organization: World Help - TW
Date of Race: 11-27-2025
Description: Join us for the 13th Annual Huntington Beach Turkey Wobble 5K/10K, ...
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5K/10K - Kids Price
Organization: World Help - TW
Date of Race: 11-27-2025
Description: Join us for the 13th Annual Huntington Beach Turkey Wobble 5K/10K, ...
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5K/10K - 7:00am
Organization: World Help - TW
Date of Race: 11-27-2025
Description: Join us for the 13th Annual Huntington Beach Turkey Wobble 5K/10K, ...
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Muddy Dash - VALUE REGISTRATION - R̶e̶g̶u̶l̶a̶r̶ ...
Organization: Viral Run
Date of Race: 03-14-2026
Description: Muddy Dash is not your average mud run! Get ready for ...
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Team Registration - Team Registration
Organization: Triumph Foundation
Date of Race: 09-13-2025
Description: We're coming BACK for a 3rd round of fun! Our annual ...
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Running-Half marathon - Individual Age group/open
Organization: ABWR
Date of Race: 10-26-2025
Description: Come on out and join us for our Monster ...
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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?
Historically, more marathons are run in the month of October than any other month (in the U.S.).
