Running races in or near Mountainside, NJ
Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more
See below for a frequently-updated, comprehensive list of upcoming running events in the local Mountainside, 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: 10-04-2025
Description: With the famous ...
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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-5K - Individual Age group/open
Organization: Rockaway Track Club / RockapulcoRun
Date of Race: 06-21-2025
Description: McCarthy Brothers Memorial Walk/Run (5K)Saturday, June 21st 2025Marine ParkFillmore Ave, Brooklyn, ...
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Running-1 Mile - Individual Age group/open
Organization: Rockaway Track Club / RockapulcoRun
Date of Race: 06-21-2025
Description: McCarthy Brothers Memorial Walk/Run (5K)Saturday, June 21st 2025Marine ParkFillmore Ave, Brooklyn, ...
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10K - Nov. 9 - Individual registration
Organization: Du City Tri Runs, Inc.
Date of Race: 11-09-2025
Description: Location: Prospect Park, Brooklyn, NYC Reference Address:
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5K - Nov. 9 - Individual registration
Organization: Du City Tri Runs, Inc.
Date of Race: 11-09-2025
Description: Location: Prospect Park, Brooklyn, NYC Reference Address:
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10K - 10K Individual
Organization: Du City Tri Runs, Inc.
Date of Race: 06-28-2025
Description: This course takes you through the natural beauty of ...
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NOV 27 - HALF - Individual registration
Organization: Du City Tri Runs, Inc.
Date of Race: 11-27-2025
Description:
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10K - Dec 6 - Individual registration
Organization: Du City Tri Runs, Inc.
Date of Race: 12-06-2025
Description: The seldom-seen Freedom Tunnel will echo with the sound of your ...
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HALF MARATHON - Individual registration
Organization: Du City Tri Runs, Inc.
Date of Race: 11-15-2025
Description:
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Event Promotions List 2025
Organization: Princeton Athletic Club of Princeton, New Jersey, Inc.
Date of Race: 05-01-2025
Description: This registration adds you to the event promotions contact database. Event ...
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MCCARTHY BROTHERS MEMORIAL RUN/WALK 1MILE RUN/WALK
Organization: Rockaway Track Club / RockapulcoRun
Date of Race: 06-21-2025
Description: McCarthy Brothers Memorial Walk/Run (5K)Saturday, June 21st 2025Marine ParkFillmore Ave, Brooklyn, ...
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The NJ Endurance Classic Half Marathon, 10k, 5k
Organization: Du City Tri Runs, Inc.
Date of Race: 06-28-2025
Description: This course takes you through the natural beauty of ...
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10K - May 24, 2025 - US Resident ...
Organization: Du City Tri Runs, Inc.
Date of Race: 05-24-2025
Description: Run Course: Fort Hamilton Base or Virtual Course Reference ...
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5k - May 24, 2025 - US Resident ...
Organization: Du City Tri Runs, Inc.
Date of Race: 05-24-2025
Description: Run Course: Fort Hamilton Base or Virtual Course Reference ...
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OCT 12 - 10K - Individual Age group/open
Organization: Du City Tri Runs, Inc.
Date of Race: 10-12-2025
Description: Please always check our website: http://www.citytri.com for updates. Welcome to ...
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OCT 12 - 5K - Individual Age group/open
Organization: Du City Tri Runs, Inc.
Date of Race: 10-12-2025
Description: Please always check our website: http://www.citytri.com for updates. Welcome to ...
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10K - 10K Individual
Organization: Du City Tri Runs, Inc.
Date of Race: 04-06-2025
Description: Run Course: Shore RoadPromenade Reference Address:6901 Shore ...
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10K - RESIDENT or US CITIZEN - Individual
Organization: Du City Tri Runs, Inc.
Date of Race: 08-30-2025
Description: Join us to run "The Hamilton" on Labor Day weekend in ...
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5K - RESIDENT or US CITIZEN - Individual
Organization: Du City Tri Runs, Inc.
Date of Race: 08-30-2025
Description: Join us to run "The Hamilton" on Labor Day weekend in ...
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Half Marathon - RESIDENT or US Citizen ...
Organization: Du City Tri Runs, Inc.
Date of Race: 08-30-2025
Description: Join us to run "The Hamilton" on Labor Day weekend in ...
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Half - Oct 5 - 13.1 miles
Organization: Du City Tri Runs, Inc.
Date of Race: 10-05-2025
Description: The JC Green Half Marathon, 10K, 5K ...
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Running-Half marathon - Individual Age group/open
Organization: Trimara Inc.
Date of Race: 09-21-2025
Description: The Race Guys decided that Prospect Park ...
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HALF MARATHON - VIRTUAL ONLY - HALF MARATHON ...
Organization: Du City Tri Runs, Inc.
Date of Race: 05-24-2025
Description: Run Course: Fort Hamilton Base or Virtual Course Reference ...
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Complete list of running events in and near Mountainside, NJ: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about Mountainside
About Mountainside
Mountainside (NJ) is a borough in Union County with an estimated population of 6,685.[4]
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Did you know?
Historically, more marathons are run in the month of October than any other month (in the U.S.).
