Squatchy Onesie Fest “5K-Marathon”
Mahwah, United States • 14 Feb 2026
Squatchy Onesiefest 5K is a Sassquad Trail Running trail party at Ramapo Valley County Reservation in Mahwah, NJ. The 5K is run as a 1.6-mile lollipop loop repeated twice, starting and finishing at the NYNJTC Headquarters; park in the reservation lot. The route is very mellow: a flat gravel/dirt trail around Scarlet Oak Pond with a brief initial singletrack and no technical sections. Participants wear onesies for a festive atmosphere, and the event offers a handcrafted finishers’ medal, an aid station with water and snacks, and top-three awards for those in onesies. Capacity is 200 and proceeds support the New York-New Jersey Trail Conference. Visit the organization's website for the most recent information.