Running races in or near Newtown, CT
Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more
See below for a frequently-updated, comprehensive list of upcoming running events in the local Newtown, CT 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 - Running or Walking Hamden Flat 5K
Organization: Shoreline Sharks
Date of Race: 05-23-2026
Description: Our 15thAnnual Event! We start at 7am ...
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Running-5K - Runner or Walker
Organization: Shoreline Sharks
Date of Race: 11-27-2025
Description: Our 5th Annual Tradition! Thanksgiving Morning ...
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Athlete - 10K - Running or Walking 10K
Organization: Shoreline Sharks
Date of Race: 10-03-2026
Description: Our 10th Annual Rail Trail 10K Race! ...
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2025 Shoreline Turkey Trot 5K
Organization: Shoreline Sharks
Date of Race: 11-27-2025
Description: Our 5th Annual Tradition! Thanksgiving Morning ...
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Running-Half marathon - Individual Age group/open
Organization: Shoreline Sharks
Date of Race: 03-28-2026
Description: Connecticut's 2nd largest Marathon Join us for ...
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Running-Half marathon - Hamden Hills Half Marathon
Organization: Shoreline Sharks
Date of Race: 05-23-2026
Description: Our 15thAnnual Event! We start at 7am ...
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Running-Half marathon - Gulf Beach Half Marathon
Organization: Shoreline Sharks
Date of Race: 09-12-2026
Description:
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Savin Rock Marathon - Individual Age group/open
Organization: Shoreline Sharks
Date of Race: 03-28-2026
Description: Connecticut's 2nd largest Marathon Join us for ...
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3 Half Marathon Entry or 1 Marathon + ...
Organization: Shoreline Sharks
Date of Race: 03-28-2026
Description: The 2026 Shoreline Sharks3 Half Marathon Ticket is a ...
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3 Half Marathon Entry or 1 Marathon + ...
Organization: Shoreline Sharks
Date of Race: 03-28-2026
Description: The 2026 Shoreline Sharks3 Half Marathon Ticket is a ...
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2026 Shoreline Sharks 3 Half Marathon Entry
Organization: Shoreline Sharks
Date of Race: 03-28-2026
Description: The 2026 Shoreline Sharks3 Half Marathon Ticket is a ...
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2026 Hamden Hills Half Marathon & Flat 5K
Organization: Shoreline Sharks
Date of Race: 05-23-2026
Description: Our 15thAnnual Event! We start at 7am ...
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2026 Savin Rock Marathon & Half Marathon
Organization: Shoreline Sharks
Date of Race: 03-28-2026
Description: Connecticut's 2nd largest Marathon Join us for ...
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2026 Rail Trail 10K Race
Organization: Shoreline Sharks
Date of Race: 10-03-2026
Description: Our 10th Annual Rail Trail 10K Race! ...
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Complete list of running events in and near Newtown, CT: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about Newtown
About Newtown
Newtown (CT) is a borough in Fairfield County with an estimated population of 1,941.[4]
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Did you know?
Historically, more marathons are run in the month of October than any other month (in the U.S.).
