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.
120K - 4-Person Team Relay
Organization: New Global Adventures
Date of Race: 05-02-2026
Description: Ready to hit the trails? TheSanta Clarita Trail Raceoffersseven exciting distances—5K, ...
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12-Hours - 2-Person Team Relay
Organization: New Global Adventures
Date of Race: 05-02-2026
Description: Ready to hit the trails? TheSanta Clarita Trail Raceoffersseven exciting distances—5K, ...
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24-Hours - Individual Age group/open
Organization: New Global Adventures
Date of Race: 05-02-2026
Description: Ready to hit the trails? TheSanta Clarita Trail Raceoffersseven exciting distances—5K, ...
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15K - Individual Age group/open
Organization: New Global Adventures
Date of Race: 05-02-2026
Description: Ready to hit the trails? TheSanta Clarita Trail Raceoffersseven exciting distances—5K, ...
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60K - Individual Age group/open
Organization: New Global Adventures
Date of Race: 05-02-2026
Description: Ready to hit the trails? TheSanta Clarita Trail Raceoffersseven exciting distances—5K, ...
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60K - 4-Person Team Relay
Organization: New Global Adventures
Date of Race: 05-02-2026
Description: Ready to hit the trails? TheSanta Clarita Trail Raceoffersseven exciting distances—5K, ...
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100K - Individual Age group/open
Organization: New Global Adventures
Date of Race: 05-02-2026
Description: Ready to hit the trails? TheSanta Clarita Trail Raceoffersseven exciting distances—5K, ...
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5K Run/Walk - Individual Age group/open
Organization: New Global Adventures
Date of Race: 09-26-2026
Description: Join us to be a part of Santa Clarita's premiernight run/walk ...
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30K - Individual Age group/open
Organization: New Global Adventures
Date of Race: 05-02-2026
Description: Ready to hit the trails? TheSanta Clarita Trail Raceoffersseven exciting distances—5K, ...
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6-Hours - Individual Age group/open
Organization: New Global Adventures
Date of Race: 05-02-2026
Description: Ready to hit the trails? TheSanta Clarita Trail Raceoffersseven exciting distances—5K, ...
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24-Hours - 4-Person Team Relay
Organization: New Global Adventures
Date of Race: 05-02-2026
Description: Ready to hit the trails? TheSanta Clarita Trail Raceoffersseven exciting distances—5K, ...
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Running-5K - Individual Age group/open
Organization: Active Zapier Test Account
Date of Race: 05-07-2026
Description: Event details and schedule
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12-Hours - 4-Person Team Relay
Organization: New Global Adventures
Date of Race: 05-02-2026
Description: Ready to hit the trails? TheSanta Clarita Trail Raceoffersseven exciting distances—5K, ...
View Race Details View on Map
24-Hours - 2-Person Team Relay
Organization: New Global Adventures
Date of Race: 05-02-2026
Description: Ready to hit the trails? TheSanta Clarita Trail Raceoffersseven exciting distances—5K, ...
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1-Mile Hike - Individual Age group/open
Organization: New Global Adventures
Date of Race: 05-02-2026
Description: Ready to hit the trails? TheSanta Clarita Trail Raceoffersseven exciting distances—5K, ...
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24-Hours - 8-Person Team Relay
Organization: New Global Adventures
Date of Race: 05-02-2026
Description: Ready to hit the trails? TheSanta Clarita Trail Raceoffersseven exciting distances—5K, ...
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5K - Individual Age group/open
Organization: New Global Adventures
Date of Race: 05-02-2026
Description: Ready to hit the trails? TheSanta Clarita Trail Raceoffersseven exciting distances—5K, ...
View Race Details View on Map
6-Hours - 4-Person Team Relay
Organization: New Global Adventures
Date of Race: 05-02-2026
Description: Ready to hit the trails? TheSanta Clarita Trail Raceoffersseven exciting distances—5K, ...
View Race Details View on Map
12-Hours - Individual Age group/open
Organization: New Global Adventures
Date of Race: 05-02-2026
Description: Ready to hit the trails? TheSanta Clarita Trail Raceoffersseven exciting distances—5K, ...
View Race Details View on Map
Zapier Test
Organization: Active Zapier Test Account
Date of Race: 05-07-2026
Description: Event details and schedule
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Be The Light 5K
Organization: New Global Adventures
Date of Race: 09-26-2026
Description: Join us to be a part of Santa Clarita's premiernight run/walk ...
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YOUTH 5K/10K (Under 18) - Individual Age group/open
Organization: New Global Adventures
Date of Race: 09-26-2026
Description: Join us to be a part of Santa Clarita's premiernight run/walk ...
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VIRTUAL 5K/10K - Individual Age group/open
Organization: New Global Adventures
Date of Race: 09-26-2026
Description: Join us to be a part of Santa Clarita's premiernight run/walk ...
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30K - 2-Person Team Relay
Organization: New Global Adventures
Date of Race: 05-02-2026
Description: Ready to hit the trails? TheSanta Clarita Trail Raceoffersseven exciting distances—5K, ...
View Race Details View on Map
120K - Individual Age group/open
Organization: New Global Adventures
Date of Race: 05-02-2026
Description: Ready to hit the trails? TheSanta Clarita Trail Raceoffersseven exciting distances—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]
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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.).
