Mischief on the River 5k

About the Event

‍Join Us for a Scenic Run Along the Delaware!

We are excited to invite you to the inaugural Mischief on the River 5K, hosted by the River Rats Athletics 501(c)(3). Designed by runners, for runners, this event features a flat and fast, out-and-back course perfectly suited for participants of all abilities—whether you're aiming for a personal best or enjoying a beautiful day on the trail.

Note: This race is limited to the first225 participants, so be sure to register early! This event will take place rain or shine.

‍Event Schedule

Registration: 7:30 AM – 8:30 AM
Race Time: 9:00 AM – 10:30 AM
Awards Ceremony: 10:30 AM
Event Details

Date: October 11, 2026
Location: Frenchtown Elementary School, 902 Harrison St, Frenchtown, NJ 08825
Timing: Provided by Pretzel City Sports.
Amenities: The venue includes on-site parking and access to actual bathroom facilities.
Course: Scenic, flat, out-and-back rail trail along the Delaware River, featuring an aid station near the turn-around point.
Post-Race: Stick around after you cross the finish line for refreshments!
Registration Fees

Early Registration: $39.99 (Until September 12th)
Late Registration: $44.99 (September 13th – October 10th)
Race Day Registration: $50.00 (Cash only)
Registration includes an event-branded BibBoard ($10.00 value). Visit www.bibboards.com for more info.
Awards

• Overall: 1st Place Male, Female, and Non-binary.

• Age Group Awards: Presented for 1st, 2nd, and 3rd place Male, Female, and Non-Binary categories in the following age groups:‍ ‍

14 and under, 15–19, 20–29, 30–39, 40-49, 50–59, 60–69, 70+

‍Support Our Mission

‍All proceeds from this event directly support the River Rats Athletics mission to promote running, fitness, and healthy living within our river town communities.

‍Interested in supporting the race? Please contact us to learn about our various sponsorship options.

‍Let’s make the first annual Mischief on the River 5K a day to remember!

‍For more information, sponsorship opportunities, or to register, please visit riverratsrc.com or contact our organizing committee at riverratsrc@gmail.com.

Races Offered

Oct 11, 2026

straighten

Distance — 5K

terrain

Type — Running

timer

09:00

sell

0.00

Weather History

These values represent the 3-year monthly averages for October in Frenchtown.

thermostat Temperature

9.1° / 19.1°

wb_sunny Feels like

6.1° / 16.4°

light_mode Avg sunshine hours

9h 2m

water_drop Avg rainfall

1.2 mm

ac_unit Avg snowfall

—

air Avg wind speed

11.3 km/h (Light breeze)

opacity Sweat loss rate

Low

terrain Course conditions

Firm and slightly soft

sunny Max UV Index

Moderate (4.0)

humidity_mid Humidity

67.1%

wb_twilight Sunrise

07:12

nightlight Sunset

18:18

About Frenchtown

Learn more about the host city, Frenchtown.

Frenchtown is a Borough in Hunterdon County. As of the United States 2010 Census, the borough population was 1,373. Various names have been applied to this settlement after the many ferry operators residing on both sides of the river. The community had variously been known as Alexandriaville, Sunbeam and Frenchtown over the years.