Feb 18, 2023 at 10:00 AM

Squatchy Onesie Fest 5K-Marathon

610 Ramapo Valley Rd

Mahwah NJ, 07430


Event Facebook page

Entry Fee $35
(Lowest or Early Registration)

Prize Money: no


  • 5K

Type: Trail

Participant Limit: 200

Course Map: Download Map

Starting Elevation: 246

Percent of the course on un-paved trails: 95%

First Year of the Event: 2020

Men's Record: 21:12

Women's Record: 23:46


“You guys should put on an event where everyone has to wear a onesie.”

“That sounds like an AMAZING idea.”

“It should be in the dead of winter.”


And so the Squatchy Onesie Fest was born! Is it a ridiculous idea? You bet it is. Won’t it be really cold in February? Yup, that’s why you need to wear a onesie. Do they even make onesies in my size? Of course they do #amazon

Join us on Saturday February 18, 2023 at the Ramapo Valley County Reservation for the first annual SQUATCHY ONESIE FEST 5K-MARATHON! Come sporting your favorite onesie and get ready to make some trail running/hiking memories that will last a lifetime. Now when your non-running friends ask, “Hey, how was your 5K marathon?” You won’t have to correct them!!

We are proudly partnering with the New York-New Jersey Trail Conference for this event and will be making a donation to the Conference after the trail party ends.


This is a runner/hiker friendly event! We LOVE having families come to our events, so make sure you register your kiddos to join in on the fun.

10AM Start Time – please check-in between 9:15am-9:45am

Please allow a few minutes to walk from the Reservation park parking lot over to the NYNJTC Headquarters.



Past Event Dates

Held on Feb 18, 2023

Held on Feb 12, 2022

Event Results

View 2022 Results

View 2021 Results

View 2020 Results