Running races in or near Marlborough, MA
Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more
See below for a frequently-updated, comprehensive list of upcoming running events in the local Marlborough, MA 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 - 18 Years Old and Under
Organization: Tri-Valley Front Runners
Date of Race: 08-16-2025
Description:
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Running-5K - 19 Years Old and Above
Organization: Tri-Valley Front Runners
Date of Race: 08-16-2025
Description:
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Running-5K - 19 Yrs Old and Above plus ...
Organization: Tri-Valley Front Runners
Date of Race: 08-16-2025
Description:
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Running-5K - 19 Yrs Old and Above plus ...
Organization: Tri-Valley Front Runners
Date of Race: 08-16-2025
Description:
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Running-5K (22 years old and above) - Individual ...
Organization: Tri-Valley Front Runners
Date of Race: 05-10-2025
Description: Course Details: Consists of long ...
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Running-5K (21 years old and under) - 21 ...
Organization: Tri-Valley Front Runners
Date of Race: 05-10-2025
Description: Course Details: Consists of long ...
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15K Runner (Age 18 & Under) - 15K ...
Organization: Tri-Valley Front Runners
Date of Race: 04-05-2025
Description: THE COURSE: ...
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Race Dates: - June and August Races Only
Organization: Tri-Valley Front Runners
Date of Race: 06-26-2025
Description: Woodland Trail Series 2025 Thursday June 26th, ...
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Race Dates: - June Race Only
Organization: Tri-Valley Front Runners
Date of Race: 06-26-2025
Description: Woodland Trail Series 2025 Thursday June 26th, ...
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Race Dates: - August Race Only: 6PM START ...
Organization: Tri-Valley Front Runners
Date of Race: 06-26-2025
Description: Woodland Trail Series 2025 Thursday June 26th, ...
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Race Dates: - 70 yrs young - June ...
Organization: Tri-Valley Front Runners
Date of Race: 06-26-2025
Description: Woodland Trail Series 2025 Thursday June 26th, ...
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Race Dates: - 70 yrs young - August ...
Organization: Tri-Valley Front Runners
Date of Race: 06-26-2025
Description: Woodland Trail Series 2025 Thursday June 26th, ...
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Race Dates: - All 3 Races (June 26, ...
Organization: Tri-Valley Front Runners
Date of Race: 06-26-2025
Description: Woodland Trail Series 2025 Thursday June 26th, ...
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Race Dates: - 70 yrs young - June, ...
Organization: Tri-Valley Front Runners
Date of Race: 06-26-2025
Description: Woodland Trail Series 2025 Thursday June 26th, ...
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Race Dates: - 70 yrs young - June ...
Organization: Tri-Valley Front Runners
Date of Race: 06-26-2025
Description: Woodland Trail Series 2025 Thursday June 26th, ...
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Race Dates: - July and August Races Only
Organization: Tri-Valley Front Runners
Date of Race: 06-26-2025
Description: Woodland Trail Series 2025 Thursday June 26th, ...
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15K Runner (Age 19 to 69) - 15K ...
Organization: Tri-Valley Front Runners
Date of Race: 04-05-2025
Description: THE COURSE: ...
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Girls' Running Club - Tuesdays at 5:00
Organization: Hill House
Date of Race: 04-01-2025
Description: DescriptionInternet Registration has not begun yet. Check Registration Dates in ...
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Girls' Running Club - Tuesdays at 5:00
Organization: Hill House
Date of Race: 04-01-2025
Description: DescriptionInternet Registration has not begun yet. Check Registration Dates in ...
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Running-Kid's Dash - 2 or more Kids (Age ...
Organization: Tri-Valley Front Runners
Date of Race: 08-16-2025
Description:
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Race Dates: - 70 yrs young - June ...
Organization: Tri-Valley Front Runners
Date of Race: 06-26-2025
Description: Woodland Trail Series 2025 Thursday June 26th, ...
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Complete list of running events in and near Marlborough, MA: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about Marlborough
About Marlborough
Marlborough (MA) is a city in Middlesex County with an estimated population of 38,499.[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.).
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