Running races in or near El Cajon, CA
Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more
See below for a frequently-updated, comprehensive list of upcoming running events in the local El Cajon, 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.
Bubble Run - Value Registrations- R̶e̶g̶u̶l̶a̶r̶ P̶r̶i̶c̶e̶ $̶5̶4̶.̶9̶5̶
Organization: Viral Run
Date of Race: 05-02-2026
Description: If you’ve done a traditional 5K, you know they ...
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Bubble Run - Exclusive VIP Registration- R̶e̶g̶u̶l̶a̶r̶ P̶r̶i̶c̶e̶ ...
Organization: Viral Run
Date of Race: 05-02-2026
Description: If you’ve done a traditional 5K, you know they ...
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Bubble Run | San Diego 2026
Organization: Viral Run
Date of Race: 05-02-2026
Description: If you’ve done a traditional 5K, you know they ...
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2026 San Diego International Triathlon & Waterfront 5K
Organization: KOZ Events
Date of Race: 06-28-2026
Description: Triathlon, Duathlon, Aquabike, or 5.6K — plus ...
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Aqua Bike -International - Duo Racer(Challenged Only) - ...
Organization: KOZ Events
Date of Race: 06-28-2026
Description: Triathlon, Duathlon, Aquabike, or 5.6K — plus ...
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Aquabike-Sprint 440 Yard Swim / 10 Mile Bike ...
Organization: KOZ Events
Date of Race: 05-03-2026
Description: 🌟 International • Sprint • Mini Sprint ...
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Triathlon-Sprint Relay 2 or 3 person. 440 Swim ...
Organization: KOZ Events
Date of Race: 05-03-2026
Description: 🌟 International • Sprint • Mini Sprint ...
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Triathlon-Mini Sprint 200 Yard Swim / 6 Mile ...
Organization: KOZ Events
Date of Race: 05-03-2026
Description: 🌟 International • Sprint • Mini Sprint ...
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SD Tri Series 5K - Individual Age group/open
Organization: KOZ Events
Date of Race: 05-03-2026
Description: 🌟 International • Sprint • Mini Sprint ...
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Triathlon-Sprint - Elite - Individual Age group/open
Organization: KOZ Events
Date of Race: 05-03-2026
Description: 🌟 International • Sprint • Mini Sprint ...
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2026 Granfondo San Diego
Organization: Granfondo Cycling Tours Inc.
Date of Race: 04-19-2026
Description: 18th Anniversary Edition! San Diego's Finest Cycling ...
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Aquabike-Sprint-500M Swim - 20K Bike - Individual Age ...
Organization: KOZ Events
Date of Race: 06-28-2026
Description: Triathlon, Duathlon, Aquabike, or 5.6K — plus ...
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Aquathlon Sprint-500M Swim - 5.6K Run - Individual ...
Organization: KOZ Events
Date of Race: 06-28-2026
Description: Triathlon, Duathlon, Aquabike, or 5.6K — plus ...
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Triathlon-International - Elite/Pro Division - Individual Age group/open
Organization: KOZ Events
Date of Race: 06-28-2026
Description: Triathlon, Duathlon, Aquabike, or 5.6K — plus ...
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Triathlon-Sprint 500m Swim/ 20K Bike/ 5.6K Run - ...
Organization: KOZ Events
Date of Race: 06-28-2026
Description: Triathlon, Duathlon, Aquabike, or 5.6K — plus ...
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Duathlon-Sprint - Duo Racer (Challenged Only) - Group-registration ...
Organization: KOZ Events
Date of Race: 05-03-2026
Description: 🌟 International • Sprint • Mini Sprint ...
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Waterfront 5K - Individual Age group/open
Organization: KOZ Events
Date of Race: 06-28-2026
Description: Triathlon, Duathlon, Aquabike, or 5.6K — plus ...
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Triathlon-International Relay 1K Swim/ 30K Bike 10K Run ...
Organization: KOZ Events
Date of Race: 06-28-2026
Description: Triathlon, Duathlon, Aquabike, or 5.6K — plus ...
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Aquabike-1K Swim/ 30K Bike - Individual Age group/open
Organization: KOZ Events
Date of Race: 06-28-2026
Description: Triathlon, Duathlon, Aquabike, or 5.6K — plus ...
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Duathlon - Sprint - 1 Mi Run - ...
Organization: KOZ Events
Date of Race: 06-28-2026
Description: Triathlon, Duathlon, Aquabike, or 5.6K — plus ...
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Triathlon-International - Elite - Individual Age group/open
Organization: KOZ Events
Date of Race: 05-03-2026
Description: 🌟 International • Sprint • Mini Sprint ...
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Aquathlon - Sprint 440 Yard Swim / 5K ...
Organization: KOZ Events
Date of Race: 05-03-2026
Description: 🌟 International • Sprint • Mini Sprint ...
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Triathlon-Itsy Bitsy 100 Yard Swim / 3 Mile ...
Organization: KOZ Events
Date of Race: 05-03-2026
Description: 🌟 International • Sprint • Mini Sprint ...
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2026 Spring Sprint Triathlon and SD Tri Series ...
Organization: KOZ Events
Date of Race: 05-03-2026
Description: 🌟 International • Sprint • Mini Sprint ...
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Triathlon-International - Duo Racer (Challenged Only) - Group-registration ...
Organization: KOZ Events
Date of Race: 05-03-2026
Description: 🌟 International • Sprint • Mini Sprint ...
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Complete list of running events in and near El Cajon, CA: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about El Cajon
About El Cajon
El Cajon (CA) is a city in San Diego County with an estimated population of 99,478.[4]
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Did you know?
In 2014, 57% of marathon finishers in the U.S. were men; women made up 43% of finishers.
