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Races in South Plainfield, NJ

Running races in or near South Plainfield, NJ

Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more

See below for a frequently-updated, comprehensive list of upcoming running events in the local South Plainfield, 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: 10-04-2025

Description: With the famous ...

Running-Half marathon - Individual

Organization: Trimara Inc.

Date of Race: 10-04-2025

Description: With the famous ...

Running-Half marathon - Individual

Organization: Trimara Inc.

Date of Race: 12-13-2025

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

HALF MARATHON - Individual registration

Organization: Du City Tri Runs, Inc.

Date of Race: 11-15-2025

Description:

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 ...

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:

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:

10K - Nov 23 - Individual

Organization: Du City Tri Runs, Inc.

Date of Race: 11-23-2025

Description: To race on a ...

NOV 27 - HALF - Individual registration

Organization: Du City Tri Runs, Inc.

Date of Race: 11-27-2025

Description:

Day Camper Fee

Organization: Princeton University Sports Camps

Date of Race: 06-29-2025

Description:

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 ...

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 ...

The New Jersey Fall Half Marathon, 10k, 5k ...

Organization: Du City Tri Runs, Inc.

Date of Race: 11-23-2025

Description: To race on a ...

Track & Field Overnight Camp

Organization: Princeton University Sports Camps

Date of Race: 06-29-2025

Description: For day campers the fee includes instruction, meals (lunch daily) and ...

Dec. 14 - Half Marathon - US Resident ...

Organization: Du City Tri Runs, Inc.

Date of Race: 12-14-2025

Description: Join us to run "The Hamilton" on in Brooklyn, USA. This ...

DEC 14 - 5K - US Resident or ...

Organization: Du City Tri Runs, Inc.

Date of Race: 12-14-2025

Description: Join us to run "The Hamilton" on in Brooklyn, USA. This ...

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 ...

HALF - 13.1 Miler Individual

Organization: Du City Tri Runs, Inc.

Date of Race: 06-28-2025

Description: This course takes you through the natural beauty of ...

NOV 27 - 5K - 10YR TO 13YR ...

Organization: Du City Tri Runs, Inc.

Date of Race: 11-27-2025

Description:

SATURDAY, AUGUST 23, 2025 - HALF - Individual ...

Organization: Du City Tri Runs, Inc.

Date of Race: 08-23-2025

Description:

5K - INTERNATIONAL Participant

Organization: Du City Tri Runs, Inc.

Date of Race: 05-24-2025

Description: Run Course: Fort Hamilton Base or Virtual Course Reference ...

HALF MARATHON - US Resident or Citizen

Organization: Du City Tri Runs, Inc.

Date of Race: 05-24-2025

Description: Run Course: Fort Hamilton Base or Virtual Course Reference ...

Half - Nov 23 - Individual

Organization: Du City Tri Runs, Inc.

Date of Race: 11-23-2025

Description: To race on a ...

5K - 5K Individual

Organization: Du City Tri Runs, Inc.

Date of Race: 06-28-2025

Description: This course takes you through the natural beauty of ...

NOV 27 - 10K - Individual registration

Organization: Du City Tri Runs, Inc.

Date of Race: 11-27-2025

Description:

Lock Laces

Complete list of running events in and near South Plainfield, NJ: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.


More information about South Plainfield

About South Plainfield

South Plainfield (NJ) is a borough in Middlesex County with an estimated population of 23,385.[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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