Running races in or near Middlesex, NJ
Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more
See below for a frequently-updated, comprehensive list of upcoming running events in the local Middlesex, NJ 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-Half marathon - Individual
Organization: Trimara Inc.
Date of Race: 12-13-2025
Description: Tis the season to be running the Holiday ...
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Running-Half marathon - Individual
Organization: Trimara Inc.
Date of Race: 10-04-2025
Description: With the famous ...
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Running-Half marathon - Individual
Organization: Trimara Inc.
Date of Race: 10-04-2025
Description: With the famous ...
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Running-Half marathon - Individual Age group/open
Organization: Trimara Inc.
Date of Race: 03-22-2025
Description: TheGo Hard or Go Home Half Marathonis a annual ...
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Running-Half marathon - Individual Age group/open
Organization: Trimara Inc.
Date of Race: 03-22-2025
Description: TheGo Hard or Go Home Half Marathonis a annual ...
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Half - April 13 - Individual
Organization: Du City Tri Runs, Inc.
Date of Race: 04-13-2025
Description: Come and celebrate the arrival of Spring running through the beautiful ...
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Half - Feb 09 - 13.1 miles
Organization: Du City Tri Runs, Inc.
Date of Race: 02-09-2025
Description: The JC Valentine's Half Marathon, 10K, 5K, ...
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10K - May 18, 2025 - 10K
Organization: Du City Tri Runs, Inc.
Date of Race: 05-18-2025
Description: We are proud and excited to hold the 4th ...
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5K • April 6 • 2025 - 5K ...
Organization: Du City Tri Runs, Inc.
Date of Race: 04-06-2025
Description: Run Course: Shore RoadPromenade Reference Address:
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Half - Aug 17 - Half
Organization: Du City Tri Runs, Inc.
Date of Race: 08-17-2025
Description: We are proud and excited to hold the First ...
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10K - Aug 17 - 10K
Organization: Du City Tri Runs, Inc.
Date of Race: 08-17-2025
Description: We are proud and excited to hold the First ...
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5K - FEB 8 - Individual registration
Organization: Du City Tri Runs, Inc.
Date of Race: 02-08-2025
Description: Run, race again for Valentine's ! Celebrate the beginning of the ...
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The Bay Ridge Half Marathon!
Organization: Trimara Inc.
Date of Race: 10-04-2025
Description: With the famous ...
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Half - May 18, 2025 - Half
Organization: Du City Tri Runs, Inc.
Date of Race: 05-18-2025
Description: We are proud and excited to hold the 4th ...
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Runners - visit woods6k.com - Runners - visit ...
Organization: Princeton Athletic Club of Princeton, New Jersey, Inc.
Date of Race: 04-05-2025
Description: Come out for a 6K Run through the beautiful Institute Woods.
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The Holiday Half Marathon!
Organization: Trimara Inc.
Date of Race: 12-13-2025
Description: Tis the season to be running the Holiday ...
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The Go Hard or Go Home Half Marathon!
Organization: Trimara Inc.
Date of Race: 03-22-2025
Description: TheGo Hard or Go Home Half Marathonis a annual ...
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Jersey City Summer Half, 10K, 5K 2025
Organization: Du City Tri Runs, Inc.
Date of Race: 08-17-2025
Description: We are proud and excited to hold the First ...
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THE VERRAZANO 10K, 5K
Organization: Du City Tri Runs, Inc.
Date of Race: 04-06-2025
Description: Run Course: Shore RoadPromenade Reference Address:
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2025 IAS Woods Run
Organization: Princeton Athletic Club of Princeton, New Jersey, Inc.
Date of Race: 04-05-2025
Description: Come out for a 6K Run through the beautiful Institute Woods.
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Less Popular Brooklyn Half Marathon - Individual Age ...
Organization: Trimara Inc.
Date of Race: 05-03-2025
Description: We know there are a lot of other more "Popular" Half ...
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Crew - 2025 April 05
Organization: Princeton Athletic Club of Princeton, New Jersey, Inc.
Date of Race: 04-05-2025
Description: Come out for a 6K Run through the beautiful Institute Woods.
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10K • April 6 • 2025 - 10K ...
Organization: Du City Tri Runs, Inc.
Date of Race: 04-06-2025
Description: Run Course: Shore RoadPromenade Reference Address:
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10K - Feb 09 - 10k
Organization: Du City Tri Runs, Inc.
Date of Race: 02-09-2025
Description: The JC Valentine's Half Marathon, 10K, 5K, ...
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5K - Feb 09 - 5k
Organization: Du City Tri Runs, Inc.
Date of Race: 02-09-2025
Description: The JC Valentine's Half Marathon, 10K, 5K, ...
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Complete list of running events in and near Middlesex, NJ: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about Middlesex
About Middlesex
Middlesex (NJ) is a borough in Middlesex County with an estimated population of 13,635.[4]
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In 2015, the 5K maintained the #1 position of all race distances with 7.6 million finishers (U.S.).
