Running races in or near New Castle, DE
Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more
See below for a frequently-updated, comprehensive list of upcoming running events in the local New Castle, 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.
Half Marathon - Individual Age group/open
Organization: Mainly Marathons
Date of Race: 06-04-2025
Description: World's Best Marathon Half Series! No Time Limits Great Food ...
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Teams - Adults - Create a Team
Organization: Goliathon
Date of Race: 06-07-2025
Description: Goliathon is a unique Ninja Warrior style, non-profit obstacle course event ...
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Teams - Kids - Join a Team
Organization: Goliathon
Date of Race: 06-07-2025
Description: Goliathon is a unique Ninja Warrior style, non-profit obstacle course event ...
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Goliathon XXI
Organization: Goliathon
Date of Race: 06-07-2025
Description: Goliathon is a unique Ninja Warrior style, non-profit obstacle course event ...
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50K - Individual Age group/open
Organization: Mainly Marathons
Date of Race: 06-05-2025
Description: World's Best Marathon Half Series! No Time Limits Great Food ...
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5K - Individual Age group/open
Organization: Mainly Marathons
Date of Race: 06-05-2025
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: 06-04-2025
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: 06-04-2025
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: 06-05-2025
Description: World's Best Marathon Half Series! No Time Limits Great Food ...
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Individuals - Adults
Organization: Goliathon
Date of Race: 06-07-2025
Description: Goliathon is a unique Ninja Warrior style, non-profit obstacle course event ...
View Race Details View on Map
Teams - Adults - Join a Team
Organization: Goliathon
Date of Race: 06-07-2025
Description: Goliathon is a unique Ninja Warrior style, non-profit obstacle course event ...
View Race Details View on Map
5K - Individual Age group/open
Organization: Mainly Marathons
Date of Race: 06-04-2025
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: 06-04-2025
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: 06-05-2025
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: 06-05-2025
Description: World's Best Marathon Half Series! No Time Limits Great Food ...
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Tough Mudder Philly 2025
Organization: Tough Mudder US
Date of Race: 05-17-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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2025 Independence Series - Day 1 (DE)
Organization: Mainly Marathons
Date of Race: 06-04-2025
Description: World's Best Marathon Half Series! No Time Limits Great Food ...
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2025 Independence Series - Day 2 (MD)
Organization: Mainly Marathons
Date of Race: 06-05-2025
Description: World's Best Marathon Half Series! No Time Limits Great Food ...
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Saturday - May 17, 2025 - TM 15K ...
Organization: Tough Mudder US
Date of Race: 05-17-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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Saturday - May 17, 2025 - Spectator & ...
Organization: Tough Mudder US
Date of Race: 05-17-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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Sunday - May 18, 2025 - TM 15K ...
Organization: Tough Mudder US
Date of Race: 05-17-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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Sunday - May 18, 2025 - TM 5K ...
Organization: Tough Mudder US
Date of Race: 05-17-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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Sunday - May 18, 2025 - Spectator & ...
Organization: Tough Mudder US
Date of Race: 05-17-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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Saturday - May 17, 2025 - TM 15K ...
Organization: Tough Mudder US
Date of Race: 05-17-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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Saturday - May 17, 2025 - TM 5K ...
Organization: Tough Mudder US
Date of Race: 05-17-2025
Description: Tough Mudder is more than just an obstacle course. Built on ...
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Complete list of running events in and near New Castle, DE: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about New Castle
About New Castle
New Castle (DE) is a city in New Castle County with an estimated population of 5,285.[4]
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Did you know?
In 2014, there were more than 1,100 marathons and more than 541,000 finishers in the U.S.
