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.
Running-5K - Open Race
Organization: Delaware Running Club
Date of Race: 11-29-2025
Description: The Delaware Running Club's premiere event is the Delaware Open Cross ...
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Marathon - Individual Age group/open
Organization: Mainly Marathons
Date of Race: 06-04-2026
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: 06-04-2026
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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2026 Independence Series - Day 2 (MD)
Organization: Mainly Marathons
Date of Race: 06-04-2026
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: 06-03-2026
Description: World's Best Marathon Half Series! No Time Limits Great Food ...
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Delaware Open XC Championship 2025
Organization: Delaware Running Club
Date of Race: 11-29-2025
Description: The Delaware Running Club's premiere event is the Delaware Open Cross ...
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Teams - Adults - Create a Team
Organization: Goliathon
Date of Race: 10-04-2025
Description: Goliathon is a unique 3.5-mile, Ninja Warrior style, non-profit obstacle course ...
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Teams - Kids - Join a Team
Organization: Goliathon
Date of Race: 10-04-2025
Description: Goliathon is a unique 3.5-mile, Ninja Warrior style, non-profit obstacle course ...
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Half Marathon - Individual Age group/open
Organization: Mainly Marathons
Date of Race: 06-04-2026
Description: World's Best Marathon Half Series! No Time Limits Great Food ...
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Individuals - Adults
Organization: Goliathon
Date of Race: 10-04-2025
Description: Goliathon is a unique 3.5-mile, Ninja Warrior style, non-profit obstacle course ...
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Teams - Adults - Join a Team
Organization: Goliathon
Date of Race: 10-04-2025
Description: Goliathon is a unique 3.5-mile, Ninja Warrior style, non-profit obstacle course ...
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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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5K - Individual Age group/open
Organization: Mainly Marathons
Date of Race: 06-04-2026
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: 06-04-2026
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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Goliathon XXII
Organization: Goliathon
Date of Race: 10-04-2025
Description: Goliathon is a unique 3.5-mile, Ninja Warrior style, non-profit obstacle course ...
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5K Prep
Organization: YMCA OF GREATER BRANDYWINE
Date of Race: 09-20-2025
Description: DescriptionReady to tackle a 5K? This program prepares you for race ...
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5K Prep
Organization: YMCA OF GREATER BRANDYWINE
Date of Race: 10-03-2025
Description: DescriptionReady to tackle a 5K? This program prepares you for race ...
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5K Prep
Organization: YMCA OF GREATER BRANDYWINE
Date of Race: 09-05-2025
Description: DescriptionReady to tackle a 5K? This program prepares you for race ...
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5K Prep
Organization: YMCA OF GREATER BRANDYWINE
Date of Race: 12-05-2025
Description: DescriptionReady to tackle a 5K? This program prepares you for race ...
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5K Prep
Organization: YMCA OF GREATER BRANDYWINE
Date of Race: 11-07-2025
Description: DescriptionReady to tackle a 5K? This program prepares you for race ...
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Ellis & Associates Lifeguarding Course
Organization: YMCA OF GREATER BRANDYWINE
Date of Race: 11-07-2025
Description: DescriptionPrerequisites: swim 200 yards (8 lengths); tread water for 2 minutes ...
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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?
The number of U.S. marathon finishers declined from 2014 to 2015 approximately 8 percent.
