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.
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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Ninja Warrior Training - Fridays at 3:00
Organization: Hill House
Date of Race: 12-04-2026
Description: Description
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Ninja Warrior Training - Fridays at 3:00
Organization: Hill House
Date of Race: 12-04-2026
Description: Description
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Ninja Warrior Training - Mondays at 1:30
Organization: Hill House
Date of Race: 11-30-2026
Description: Description
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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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Ninja Warrior Training - Mondays at 1:30
Organization: Hill House
Date of Race: 11-30-2026
Description: Description
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Ninja Warrior Training - Fridays at 3:00
Organization: Hill House
Date of Race: 12-04-2026
Description: Description
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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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Ninja Warrior Training - Mondays at 1:30
Organization: Hill House
Date of Race: 11-30-2026
Description: Description
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Running-5 Mile - Individual Age group/open
Organization: B. A. Event Promotions
Date of Race: 08-21-2027
Description: Event details and schedule
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Big Man Run XXVII 'Let's Do It Again'
Organization: B. A. Event Promotions
Date of Race: 08-21-2027
Description: Event details and schedule
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1st - 4th Basketball Camp 2027
Organization: Graham County Recreation Commission
Date of Race: 11-20-2026
Description: This camp will stress basketball fundamentals. Please have your ...
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1st - 4th Basketball Camp 2027
Organization: Graham County Recreation Commission
Date of Race: 11-20-2026
Description: This camp will stress basketball fundamentals. Please have your ...
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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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Born To Play Baseball - Wednesdays at 1:30
Organization: Hill House
Date of Race: 12-02-2026
Description: Description (DROP-OFF Program): Introduce your ...
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Born To Play Baseball - Wednesdays at 1:30
Organization: Hill House
Date of Race: 12-02-2026
Description: Description (DROP-OFF Program): Introduce your ...
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Born To Play Baseball - Wednesdays at 1:30
Organization: Hill House
Date of Race: 12-02-2026
Description: Description (DROP-OFF Program): Introduce your ...
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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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