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Races in Mountainside, NJ

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.

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Running-Half marathon - Individual

Organization: Trimara Inc.

Date of Race: 12-09-2023

Description: Tis the season to be running the Holiday Half ...

Running-Half marathon - Individual

Organization: Trimara Inc.

Date of Race: 10-05-2024

Description: With the famous ...

Running-10K - Individual Age group

Organization: Trimara Inc.

Date of Race: 06-22-2024

Description: The ultimate Brooklyn Beer run is back! Runners take ...

Running-Half marathon - Individual Age group/open

Organization: Trimara Inc.

Date of Race: 09-15-2024

Description: The Race Guys decided that Prospect Park was deserving ...

Running-Half marathon - Individual Age group/open

Organization: Trimara Inc.

Date of Race: 03-23-2024

Description: TheGo Hard or Go Home Half Marathonis a annual ...

Running-Half marathon - Individual Age group/open

Organization: Trimara Inc.

Date of Race: 03-23-2024

Description: TheGo Hard or Go Home Half Marathonis a annual ...

5K • March 16, 2024 - 5K Individual

Organization: Du City Tri Runs, Inc.

Date of Race: 03-16-2024

Description: Location: Prospect Park, Brooklyn, NYC

10K - May 12 - 10k

Organization: Du City Tri Runs, Inc.

Date of Race: 05-12-2024

Description: Join us to celebrate everything great about motherhood by ...

10K - May 19 - 10K

Organization: Du City Tri Runs, Inc.

Date of Race: 05-19-2024

Description: We are proud and excited to hold the 4th ...

MARCH 24-10K - Individual registration

Organization: Du City Tri Runs, Inc.

Date of Race: 03-24-2024

Description: Join us ...

MARCH 24 - HALF - Individual registration

Organization: Du City Tri Runs, Inc.

Date of Race: 03-24-2024

Description: Join us ...

Half - Feb 11 - 13.1 miles

Organization: Du City Tri Runs, Inc.

Date of Race: 02-11-2024

Description: The JC Valentine's Half Marathon, 10K, 5K ...

10K • March 16, 2024 - 10K Individual

Organization: Du City Tri Runs, Inc.

Date of Race: 03-16-2024

Description: Location: Prospect Park, Brooklyn, NYC

Less Popular Brooklyn Half Marathon - Individual Age ...

Organization: Trimara Inc.

Date of Race: 05-04-2024

Description: We know there are a lot of other more "Popular" Half ...

5K - Dec 2 - Individual registration

Organization: Du City Tri Runs, Inc.

Date of Race: 12-02-2023

Description: Start your December with a run over the seldom-seen Freedom ...

10K - Dec 2 - Individual registration

Organization: Du City Tri Runs, Inc.

Date of Race: 12-02-2023

Description: Start your December with a run over the seldom-seen Freedom ...

Brooklyn Spring Half • 10k • 5k | ...

Organization: Du City Tri Runs, Inc.

Date of Race: 03-16-2024

Description: Location: Prospect Park, Brooklyn, NYC

The Prospect Park Half Marathon!

Organization: Trimara Inc.

Date of Race: 09-15-2024

Description: The Race Guys decided that Prospect Park was deserving ...

Less Popular Brooklyn Half Marathon - Individual Age ...

Organization: Trimara Inc.

Date of Race: 05-04-2024

Description: We know there are a lot of other more "Popular" Half ...

Half - May 19 - Half

Organization: Du City Tri Runs, Inc.

Date of Race: 05-19-2024

Description: We are proud and excited to hold the 4th ...

5K - May 19 - 5K

Organization: Du City Tri Runs, Inc.

Date of Race: 05-19-2024

Description: We are proud and excited to hold the 4th ...

10K - Feb 11 - 10k

Organization: Du City Tri Runs, Inc.

Date of Race: 02-11-2024

Description: The JC Valentine's Half Marathon, 10K, 5K ...

5K - May 12 - 5k

Organization: Du City Tri Runs, Inc.

Date of Race: 05-12-2024

Description: Join us to celebrate everything great about motherhood by ...

Half - May 12 - 13.1 Miler

Organization: Du City Tri Runs, Inc.

Date of Race: 05-12-2024

Description: Join us to celebrate everything great about motherhood by ...

The JC Valentine's Half, 10K, 5K

Organization: Du City Tri Runs, Inc.

Date of Race: 02-11-2024

Description: The JC Valentine's Half Marathon, 10K, 5K ...

Road Runner Sports

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.).

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