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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 complete a flat, scenic 1.6-mile "lollipop" loop around Scarlet Oak Pond twice to finish the 5K. The course features mostly wide gravel and dirt trails with a short single-track section, making it beginner-friendly and suitable for road shoes.

The event encourages runners to wear onesies, adding a playful atmosphere to this winter race. Amenities include aid stations, handcrafted finisher medals, and awards for top finishers wearing onesies. The race supports the New York-New Jersey Trail Conference, emphasizing trail preservation and community spirit. Visit the organization's website for the most recent information.

United States New Jersey Mahwah

Race information

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