Running races in or near South River, 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 River, 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: 12-21-2025
Description: Tis the season to be running the Holiday ...
View Race Details View on Map
The Holiday Half Marathon!
Organization: Trimara Inc.
Date of Race: 12-21-2025
Description: Tis the season to be running the Holiday ...
View Race Details View on Map
Running-Half marathon - Individual Age group/open
Organization: Trimara Inc.
Date of Race: 02-07-2026
Description: TheGo Hard or Go Home Half Marathonis ...
View Race Details View on Map
10K - Dec 20 - 9:30AM - Individual ...
Organization: Du City Tri Runs, Inc.
Date of Race: 12-20-2025
Description: Celebrate the holiday season in Thompson Park with either a 10K, ...
View Race Details View on Map
HALF MARCH 15 - WEEQUAHIC PARK - Individual ...
Organization: Du City Tri Runs, Inc.
Date of Race: 03-15-2026
Description:
View Race Details View on Map
5K MARCH 15 - WEEQUAHIC PARK - Individual ...
Organization: Du City Tri Runs, Inc.
Date of Race: 03-15-2026
Description:
View Race Details View on Map
10K - FEB 14 - Individual registration
Organization: Du City Tri Runs, Inc.
Date of Race: 02-14-2026
Description: Run, race again for Valentine's ! Celebrate the beginning of the ...
View Race Details View on Map
5K - Dec 20 - 9:30 AM - ...
Organization: Du City Tri Runs, Inc.
Date of Race: 12-20-2025
Description: Celebrate the holiday season in Thompson Park with either a 10K, ...
View Race Details View on Map
10K - 10K Individual
Organization: Du City Tri Runs, Inc.
Date of Race: 04-05-2026
Description: Run Course: Shore RoadPromenade Reference Address:6901 Shore ...
View Race Details View on Map
5K - 5K Individual
Organization: Du City Tri Runs, Inc.
Date of Race: 04-05-2026
Description: Run Course: Shore RoadPromenade Reference Address:6901 Shore ...
View Race Details View on Map
Track & Field Overnight Camp
Organization: Princeton University Sports Camps
Date of Race: 06-28-2026
Description: For day campers the fee includes instruction, meals (lunch daily) and ...
View Race Details View on Map
Valentine 5K & 10K @ Bay Ridge
Organization: Du City Tri Runs, Inc.
Date of Race: 02-14-2026
Description: Run, race again for Valentine's ! Celebrate the beginning of the ...
View Race Details View on Map
THE VERRAZANO
Organization: Du City Tri Runs, Inc.
Date of Race: 04-05-2026
Description: Run Course: Shore RoadPromenade Reference Address:6901 Shore ...
View Race Details View on Map
1/2 Miler - Individual Age group/open
Organization: Du City Tri Runs, Inc.
Date of Race: 12-20-2025
Description: Celebrate the holiday season in Thompson Park with either a 10K, ...
View Race Details View on Map
50 Yard Dashers - Individual Age group/open
Organization: Du City Tri Runs, Inc.
Date of Race: 12-20-2025
Description: Celebrate the holiday season in Thompson Park with either a 10K, ...
View Race Details View on Map
10K MARCH 15 - WEEQUAHIC PARK - Individual ...
Organization: Du City Tri Runs, Inc.
Date of Race: 03-15-2026
Description:
View Race Details View on Map
5K - FEB 14 - Individual registration
Organization: Du City Tri Runs, Inc.
Date of Race: 02-14-2026
Description: Run, race again for Valentine's ! Celebrate the beginning of the ...
View Race Details View on Map
Day Camper Fee
Organization: Princeton University Sports Camps
Date of Race: 06-28-2026
Description: Run, race again for Valentine's ! Celebrate the beginning of the ...
View Race Details View on Map
NJ Holiday 10K, 5K, & Youth Runs at ...
Organization: Du City Tri Runs, Inc.
Date of Race: 12-20-2025
Description: Celebrate the holiday season in Thompson Park with either a 10K, ...
View Race Details View on Map
March Madness Half, 10k, 5k @ Weequahic Park, ...
Organization: Du City Tri Runs, Inc.
Date of Race: 03-15-2026
Description:
View Race Details View on Map
The 2026 Go Hard or Go Home Half ...
Organization: Trimara Inc.
Date of Race: 02-07-2026
Description: TheGo Hard or Go Home Half Marathonis ...
View Race Details View on Map
Boys Cross Country Camp
Organization: Princeton University Sports Camps
Date of Race: 07-30-2026
Description: GROUP SPECIAL: $800.00 Per Person for Groups of 5 or more! ...
View Race Details View on Map
Girls Cross Country Camp
Organization: Princeton University Sports Camps
Date of Race: 07-26-2026
Description: GROUP SPECIAL: $900.00 Per Person for Groups of 5 or more! ...
View Race Details View on Map
Day Camper Fee
Organization: Princeton University Sports Camps
Date of Race: 07-30-2026
Description: GROUP SPECIAL: $900.00 Per Person for Groups of 5 or more! ...
View Race Details View on Map
Complete list of running events in and near South River, NJ: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about South River
About South River
South River (NJ) is a borough in Middlesex County with an estimated population of 16,008.[4]
Races Local Newsletter
Subscribe to get the latest on racing delivered to your inbox, once per week.
Did you know?
The number of U.S. marathon finishers declined from 2014 to 2015 approximately 8 percent.
