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.
5K - Individual Age group/open
Organization: Mainly Marathons
Date of Race: 06-08-2027
Description: World's Best Marathon Half Series(5K's, 10K's, 50's too)! No ...
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10K - Individual Age group/open
Organization: Mainly Marathons
Date of Race: 06-08-2027
Description: World's Best Marathon Half Series(5K's, 10K's, 50's too)! No ...
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Half Marathon - Individual Age group/open
Organization: Mainly Marathons
Date of Race: 06-08-2027
Description: World's Best Marathon Half Series(5K's, 10K's, 50's too)! No ...
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Marathon - Individual Age group/open
Organization: Mainly Marathons
Date of Race: 06-08-2027
Description: World's Best Marathon Half Series(5K's, 10K's, 50's too)! No ...
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50K - Individual Age group/open
Organization: Mainly Marathons
Date of Race: 06-08-2027
Description: World's Best Marathon Half Series(5K's, 10K's, 50's too)! No ...
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2027 New England Series - Day 2 (RI)
Organization: Mainly Marathons
Date of Race: 06-08-2027
Description: World's Best Marathon Half Series(5K's, 10K's, 50's too)! No ...
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Bedford Run Club 1729: S2 (18+) Sun 10/11 ...
Organization: Town of Bedford Recreation Department
Date of Race: 10-11-2026
Description: DescriptionSession 2: Oct 11 - Nov 1FREE program, but registration is ...
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Ninja Warrior Training - Fridays at 3:00
Organization: Hill House
Date of Race: 12-04-2026
Description: DescriptionInternet Registration has not begun yet. Check Registration Dates in ...
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Ninja Warrior Training - Mondays at 1:30
Organization: Hill House
Date of Race: 11-30-2026
Description: DescriptionInternet Registration has not begun yet. Check Registration Dates in ...
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Ninja Warrior Training - Mondays at 1:30
Organization: Hill House
Date of Race: 11-30-2026
Description: DescriptionInternet Registration has not begun yet. Check Registration Dates in ...
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Ninja Warrior Training - Fridays at 3:00
Organization: Hill House
Date of Race: 12-04-2026
Description: DescriptionInternet Registration has not begun yet. Check Registration Dates in ...
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Ninja Warrior Training - Mondays at 1:30
Organization: Hill House
Date of Race: 11-30-2026
Description: DescriptionInternet Registration has not begun yet. Check Registration Dates in ...
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Ninja Warrior Training - Fridays at 3:00
Organization: Hill House
Date of Race: 12-04-2026
Description: DescriptionInternet Registration has not begun yet. Check Registration Dates in ...
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17th Annual Upton VFW Run to Remember 5K
Organization: Tri-Valley Front Runners
Date of Race: 10-03-2026
Description: RUN TO REMEMBER A VETERAN!!! Our race honors all Active, Reserve, ...
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Walking-2.25K / 1.4 Mi - Walker - Open
Organization: Tri-Valley Front Runners
Date of Race: 10-03-2026
Description: RUN TO REMEMBER A VETERAN!!! Our race honors all Active, Reserve, ...
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5K Runner - Runner - Super Senior
Organization: Tri-Valley Front Runners
Date of Race: 10-03-2026
Description: RUN TO REMEMBER A VETERAN!!! Our race honors all Active, Reserve, ...
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Walking-2.25K / 1.4 Mi - Walker - Youth
Organization: Tri-Valley Front Runners
Date of Race: 10-03-2026
Description: RUN TO REMEMBER A VETERAN!!! Our race honors all Active, Reserve, ...
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Kids Fun Run - 1 Kid - Fun ...
Organization: Tri-Valley Front Runners
Date of Race: 10-03-2026
Description: RUN TO REMEMBER A VETERAN!!! Our race honors all Active, Reserve, ...
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Walking-2.25K / 1.4 Mi - Walker - Super ...
Organization: Tri-Valley Front Runners
Date of Race: 10-03-2026
Description: RUN TO REMEMBER A VETERAN!!! Our race honors all Active, Reserve, ...
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2 Kids - Fun Run - 2 Kids ...
Organization: Tri-Valley Front Runners
Date of Race: 10-03-2026
Description: RUN TO REMEMBER A VETERAN!!! Our race honors all Active, Reserve, ...
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5K Runner - Runner - Youth
Organization: Tri-Valley Front Runners
Date of Race: 10-03-2026
Description: RUN TO REMEMBER A VETERAN!!! Our race honors all Active, Reserve, ...
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5K Runner - 5K Runner - Open
Organization: Tri-Valley Front Runners
Date of Race: 10-03-2026
Description: RUN TO REMEMBER A VETERAN!!! Our race honors all Active, Reserve, ...
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Modern Day Embroidery Sampler
Organization: The Munroe Center for the Arts
Date of Race: 10-24-2026
Description: Students use a pattern, colorful threads, and stitches including running, back, ...
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BSS Fall Two After School Program
Organization: Coach Mike's Mobile Sports
Date of Race: 11-05-2026
Description: Coach Mike will be running an after school sports program at ...
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St Catherine's Fall Session Two
Organization: Coach Mike's Mobile Sports
Date of Race: 11-10-2026
Description: Coach Mike will be running an after school sports program at ...
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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 2014, 57% of marathon finishers in the U.S. were men; women made up 43% of finishers.
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