Running races in or near Simi Valley, CA
Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more
See below for a frequently-updated, comprehensive list of upcoming running events in the local Simi Valley, 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 - Individual Age group/open
Organization: ABWR
Date of Race: 11-26-2026
Description: We are back at Lake Balboa/Woodley Park!!
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Running-15K - Individual Age group/open
Organization: ABWR
Date of Race: 11-26-2026
Description: We are back at Lake Balboa/Woodley Park!!
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Running-15K - Individual Age group/open
Organization: ABWR
Date of Race: 10-04-2026
Description: It's time for the Haunted Heroes 5k, 10k, 15k, Half Marathon ...
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Running-10K - Individual Age group/open
Organization: ABWR
Date of Race: 10-04-2026
Description: It's time for the Haunted Heroes 5k, 10k, 15k, Half Marathon ...
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Running-10K - Individual Age group/open
Organization: ABWR
Date of Race: 12-06-2026
Description: It's time for the Jingle Bell 5k, 10k, 15k, Half Marathon ...
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Running-10K - Individual Age group/open
Organization: ABWR
Date of Race: 07-05-2026
Description: We are back at Lake Balboa/Woodley Park!!
View Race Details View on Map
Running-5K - Individual Age group/open
Organization: ABWR
Date of Race: 09-06-2026
Description: We are back at Lake Balboa/Woodley Park!!
View Race Details View on Map
Running-10K - Individual Age group/open
Organization: ABWR
Date of Race: 09-06-2026
Description: We are back at Lake Balboa/Woodley Park!!
View Race Details View on Map
Running-10K - Individual Age group/open
Organization: ABWR
Date of Race: 10-17-2026
Description: We are back at Hansen Dam!! It's ...
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Running-5K - Individual Age group/open
Organization: ABWR
Date of Race: 12-06-2026
Description: It's time for the Jingle Bell 5k, 10k, 15k, Half Marathon ...
View Race Details View on Map
Running-15K - Individual Age group/open
Organization: ABWR
Date of Race: 07-05-2026
Description: We are back at Lake Balboa/Woodley Park!!
View Race Details View on Map
Running-10K - Individual Age group/open
Organization: ABWR
Date of Race: 11-26-2026
Description: We are back at Lake Balboa/Woodley Park!!
View Race Details View on Map
Running-5K - Individual Age group/open
Organization: ABWR
Date of Race: 10-17-2026
Description: We are back at Hansen Dam!! It's ...
View Race Details View on Map
Running-15K - Individual Age group/open
Organization: ABWR
Date of Race: 09-06-2026
Description: We are back at Lake Balboa/Woodley Park!!
View Race Details View on Map
Running-5K - Individual Age group/open
Organization: ABWR
Date of Race: 10-04-2026
Description: It's time for the Haunted Heroes 5k, 10k, 15k, Half Marathon ...
View Race Details View on Map
Running-15K - Individual Age group/open
Organization: ABWR
Date of Race: 12-06-2026
Description: It's time for the Jingle Bell 5k, 10k, 15k, Half Marathon ...
View Race Details View on Map
Running-5K - Individual Age group/open
Organization: ABWR
Date of Race: 07-05-2026
Description: We are back at Lake Balboa/Woodley Park!!
View Race Details View on Map
Running-10K - Individual Age group/open
Organization: ABWR
Date of Race: 10-25-2026
Description: It's time for the Monster Dash 5k, 10k, 15k, Half Marathon ...
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Running-5K - Individual Age group/open
Organization: ABWR
Date of Race: 10-25-2026
Description: It's time for the Monster Dash 5k, 10k, 15k, Half Marathon ...
View Race Details View on Map
Running-5K - Individual Age group/open
Organization: ABWR
Date of Race: 12-12-2026
Description: We are back at Lake Balboa/Woodley Park!!
View Race Details View on Map
Running-10K - Individual Age group/open
Organization: ABWR
Date of Race: 12-12-2026
Description: We are back at Lake Balboa/Woodley Park!!
View Race Details View on Map
Running-15K - Individual Age group/open
Organization: ABWR
Date of Race: 12-12-2026
Description: We are back at Lake Balboa/Woodley Park!!
View Race Details View on Map
Running-15K - Individual Age group/open
Organization: ABWR
Date of Race: 10-17-2026
Description: We are back at Hansen Dam!! It's ...
View Race Details View on Map
Running-15K - Individual Age group/open
Organization: ABWR
Date of Race: 10-25-2026
Description: It's time for the Monster Dash 5k, 10k, 15k, Half Marathon ...
View Race Details View on Map
Running-Half Marathon - Individual Age group/open
Organization: ABWR
Date of Race: 11-26-2026
Description: We are back at Lake Balboa/Woodley Park!!
View Race Details View on Map
Complete list of running events in and near Simi Valley, CA: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about Simi Valley
About Simi Valley
Simi Valley (CA) is a city in Ventura County with an estimated population of 124,237.[4]
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Did you know?
In 2015, the 5K maintained the #1 position of all race distances with 7.6 million finishers (U.S.).
