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-10 Mile - 10 Mile Run
Organization: Shoreline Sharks
Date of Race: 08-01-2026
Description: Are you ready for ...
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Running-5K - Runner or Walker
Organization: Shoreline Sharks
Date of Race: 11-26-2026
Description: Our 6th 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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The Perfect Ten & Five Mile Road Race
Organization: Shoreline Sharks
Date of Race: 08-01-2026
Description: Are you ready for ...
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Running-5 Mile - 5 Mile Run or Walk
Organization: Shoreline Sharks
Date of Race: 08-01-2026
Description: Are you ready for ...
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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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2026 Shoreline Turkey Trot 5K
Organization: Shoreline Sharks
Date of Race: 11-26-2026
Description: Our 6th Annual Tradition! Thanksgiving Morning ...
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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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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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Hamden Flat 5K + Perfect Ten Miler + ...
Organization: Shoreline Sharks
Date of Race: 05-23-2026
Description: For 2 weeks only, we have a great money ...
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The Ultimate Hamden Race Ticket
Organization: Shoreline Sharks
Date of Race: 05-23-2026
Description: For 2 weeks only, we have a great money ...
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Hamden Hills Half Marathon + Perfect Five Miler ...
Organization: Shoreline Sharks
Date of Race: 05-23-2026
Description: For 2 weeks only, we have a great money ...
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Hamden Hills Half Marathon + Perfect Ten Miler ...
Organization: Shoreline Sharks
Date of Race: 05-23-2026
Description: For 2 weeks only, we have a great money ...
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Hamden Flat 5K + Perfect Five Miler + ...
Organization: Shoreline Sharks
Date of Race: 05-23-2026
Description: For 2 weeks only, we have a great money ...
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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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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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Clinic/camp-Multi-day - One camper
Organization: Trifitness
Date of Race: 06-29-2026
Description: The Trifitness Youth Triathlons Camp is sponsored by theTown of ...
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Clinic/camp-Multi-day - Second child registration
Organization: Trifitness
Date of Race: 06-29-2026
Description: The Trifitness Youth Triathlons Camp is sponsored by theTown of ...
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Camp-One-day - One Day July 6 One Camper
Organization: Trifitness
Date of Race: 07-06-2026
Description: The Trifitness Youth Triathlons Camp is sponsored by theTown of ...
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Camp-One-day - One Day July 9 One Camper
Organization: Trifitness
Date of Race: 07-06-2026
Description: The Trifitness Youth Triathlons Camp is sponsored by theTown of ...
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Clinic/camp-Multi-day - One camper
Organization: Trifitness
Date of Race: 07-13-2026
Description: The Trifitness Youth Triathlons Camp is sponsored by theTown of ...
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Camp-One-day - One Day July 16 One Camper
Organization: Trifitness
Date of Race: 07-13-2026
Description: The Trifitness Youth Triathlons Camp is sponsored by theTown of ...
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Clinic/camp-Multi-day - One camper
Organization: Trifitness
Date of Race: 07-06-2026
Description: The Trifitness Youth Triathlons Camp is sponsored by theTown of ...
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Clinic/camp-Multi-day - Third child registration
Organization: Trifitness
Date of Race: 06-29-2026
Description: The Trifitness Youth Triathlons Camp is sponsored by theTown of ...
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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.).
