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-50K - Individual Age group/open
Organization: The Next Loop Endurance Series
Date of Race: 04-11-2026
Description: What Is The Next Loop? TheNext Loop Endurance Seriesis a loop-based ...
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Running-Marathon - Individual Age group/open
Organization: The Next Loop Endurance Series
Date of Race: 04-11-2026
Description: What Is The Next Loop? TheNext Loop Endurance Seriesis a loop-based ...
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Running-10K - Individual Age group/open
Organization: The Next Loop Endurance Series
Date of Race: 04-11-2026
Description: What Is The Next Loop? TheNext Loop Endurance Seriesis a loop-based ...
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Running-5K - Individual Age group/open
Organization: The Next Loop Endurance Series
Date of Race: 04-11-2026
Description: What Is The Next Loop? TheNext Loop Endurance Seriesis a loop-based ...
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Running-15K - Individual Age group/open
Organization: The Next Loop Endurance Series
Date of Race: 04-11-2026
Description: What Is The Next Loop? TheNext Loop Endurance Seriesis a loop-based ...
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Ninja Warrior Training - Fridays at 3:00
Organization: Hill House
Date of Race: 03-13-2026
Description: Description(DROP-OFF Program): ...
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Running-Half marathon - Individual Age group/open
Organization: The Next Loop Endurance Series
Date of Race: 04-11-2026
Description: What Is The Next Loop? TheNext Loop Endurance Seriesis a loop-based ...
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Ninja Warrior Training - Fridays at 3:00
Organization: Hill House
Date of Race: 03-13-2026
Description: Description(DROP-OFF Program): ...
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16th Annual Hopedale Blue Raider 5K Run
Organization: Tri-Valley Front Runners
Date of Race: 05-09-2026
Description: Course Details: Consists of long ...
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The Next Loop Endurance Series - New England
Organization: The Next Loop Endurance Series
Date of Race: 04-11-2026
Description: What Is The Next Loop? TheNext Loop Endurance Seriesis a loop-based ...
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Girls Run Club - Tuesdays at 5:00
Organization: Hill House
Date of Race: 03-31-2026
Description: DescriptionCome join our fantastic girls athletics staff as ...
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Running-5K (22 years old and above) - Individual ...
Organization: Tri-Valley Front Runners
Date of Race: 05-09-2026
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: 05-09-2026
Description: Course Details: Consists of long ...
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Girls Run Club - Tuesdays at 5:00
Organization: Hill House
Date of Race: 03-31-2026
Description: DescriptionCome join our fantastic girls athletics staff as ...
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Girls Run Club - Tuesdays at 5:00
Organization: Hill House
Date of Race: 03-31-2026
Description: DescriptionCome join our fantastic girls athletics staff as ...
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BSS Spring 2026 After School Program
Organization: Coach Mike's Mobile Sports
Date of Race: 04-30-2026
Description: Coach Mike will be running an after school sports program at ...
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Fisher School After School Program
Organization: Coach Mike's Mobile Sports
Date of Race: 03-18-2026
Description: Coach Mike will be running an after school sports program at ...
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St Catherine's Spring Session
Organization: Coach Mike's Mobile Sports
Date of Race: 04-07-2026
Description: Coach Mike will be running an after school sports program at ...
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Born To Play Baseball - Wednesdays at 3:00
Organization: Hill House
Date of Race: 04-01-2026
Description: Description(DROP-OFF Program): Introduce your child to America's favorite pastime through this ...
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Born To Play Baseball - Wednesdays at 3:00
Organization: Hill House
Date of Race: 04-01-2026
Description: Description(DROP-OFF Program): Introduce your child to America's favorite pastime through this ...
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Born To Play Baseball - Wednesdays at 3:00
Organization: Hill House
Date of Race: 04-01-2026
Description: Description(DROP-OFF Program): Introduce your child to America's favorite pastime through this ...
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BSS Winter 2026 (K, 1 & 2) After ...
Organization: Coach Mike's Mobile Sports
Date of Race: 02-26-2026
Description: Coach Mike will be running an after school sports program at ...
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Born To Play Baseball - Mondays at 3:00
Organization: Hill House
Date of Race: 03-30-2026
Description: DescriptionIntroduce your child to America's favorite pastime through ...
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Born To Play Baseball - Mondays at 3:00
Organization: Hill House
Date of Race: 03-30-2026
Description: DescriptionIntroduce your child to America's favorite pastime through ...
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St Catherine's Winter Session Two
Organization: Coach Mike's Mobile Sports
Date of Race: 02-24-2026
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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In 2015, the 5K maintained the #1 position of all race distances with 7.6 million finishers (U.S.).
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