Running races in or near Clayton, DE
Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more
See below for a frequently-updated, comprehensive list of upcoming running events in the local Clayton, DE 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.
5K - Individual Age group/open
Organization: Mainly Marathons
Date of Race: 06-03-2026
Description: World's Best Marathon Half Series! No Time Limits Great Food ...
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50K - Individual Age group/open
Organization: Mainly Marathons
Date of Race: 06-03-2026
Description: World's Best Marathon Half Series! No Time Limits Great Food ...
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Marathon - Individual Age group/open
Organization: Mainly Marathons
Date of Race: 06-03-2026
Description: World's Best Marathon Half Series! No Time Limits Great Food ...
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Half Marathon - Individual Age group/open
Organization: Mainly Marathons
Date of Race: 06-03-2026
Description: World's Best Marathon Half Series! No Time Limits Great Food ...
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10K - Individual Age group/open
Organization: Mainly Marathons
Date of Race: 06-03-2026
Description: World's Best Marathon Half Series! No Time Limits Great Food ...
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2026 Independence Series - Day 1 (DE)
Organization: Mainly Marathons
Date of Race: 06-03-2026
Description: World's Best Marathon Half Series! No Time Limits Great Food ...
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SHE DEFENDS – Building Handgun Confidence
Organization: Delaware Tactical Firearms
Date of Race: 10-18-2025
Description: This is a 4 hour Ladies only course is designed to ...
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Complete list of running events in and near Clayton, DE: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about Clayton
About Clayton
Clayton (DE) is a town in Kent County with an estimated population of 2,918.[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.).
