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-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 ...
View Race Details View on Map
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 ...
View Race Details View on Map
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 ...
View Race Details View on Map
Running-15K - 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: 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: 01-03-2027
Description: It's time to Ring in the New Year at our 5k, ...
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-15K - Individual Age group/open
Organization: ABWR
Date of Race: 10-25-2026
Description: It's time for the Haunted Valley 5k, 10k, 15k, Half Marathon ...
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-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-10K - 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-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: 01-03-2027
Description: It's time to Ring in the New Year at our 5k, ...
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-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: 10-04-2026
Description: It's time for the Haunted Heroes 5k, 10k, 15k, Half Marathon ...
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-5K - Individual Age group/open
Organization: ABWR
Date of Race: 10-25-2026
Description: It's time for the Haunted Valley 5k, 10k, 15k, Half Marathon ...
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 Haunted Valley 5k, 10k, 15k, Half Marathon ...
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
3 / 5K Walking and Running - Adult
Organization: Kidneys Quest Foundation
Date of Race: 09-26-2026
Description: The Kidneys Quest Foundation 3K/5K Walk/Run for Health ...
View Race Details View on Map
Running-10K - Individual Age group/open
Organization: ABWR
Date of Race: 01-03-2027
Description: It's time to Ring in the New Year at our 5k, ...
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]
Races Local Newsletter
Subscribe to get the latest on racing delivered to your inbox, once per week.
Did you know?
In 2014, there were more than 1,100 marathons and more than 541,000 finishers in the U.S.
