Mahlon Winter Donut Run 5 & 10 & 13.1

The Mahlon Winter Donut Run 5 & 10 & 13.1 is a trail race in Jefferson Township, New Jersey, on March 20, 2027, with a 10-miler (16.1 km) and a 5-miler (8 km), both starting at 9:30 a.m. from Saffin's Pond in Mahlon Dickerson Reservation, Lake Hopatcong.

The trails cover varied terrain, including creeks, wildlife, wooded areas, rocks, roots, hills and steep slopes. Runners should be ready for an adventure on mixed terrain, are advised to study the trail maps beforehand, and are encouraged to carry a charged phone, energy snacks and hydration. The first 75 registrants receive a beanie, and finishers receive a medal (beanies limited to the first 75). Entry covers water and course support, and the event benefits a charity.