Squatchy Onesie Fest “5K-Marathon”

Mahwah, United States • 14 Feb 2026

The Squatchy Onesie Fest 5K is a fun and unique trail running event held at Ramapo Valley County Reservation in Mahwah, New Jersey. Participants are encouraged to wear their favorite onesies, adding a playful atmosphere to this winter race. The course is a scenic, mostly flat "lollipop" loop around Scarlet Oak Pond, featuring wide gravel and dirt trails with a short single-track section.

Runners complete two loops to finish the 5K. The event supports the New York-New Jersey Trail Conference, with aid stations providing water, snacks, and Skratch hydration. Awards are given to the top male, female, and non-binary finishers who wear onesies.

The race offers a welcoming environment suitable for all levels. Visit the organization's website for the most recent information.

Race information

5 km
Squatchy Onesiefest 5k
Visit the organization's website for the most recent information.
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