Sunday, September 3, 2017, 9:00 a.m. The Wapack race course is 18.0 miles. The route is an out-and-back that follows the Wapack Trail between New Ipswich, NH and Ashburnham, MA. There are four major mountains in between: Barrett, New Ipswich, Pratt, and Watatic, from north to south. The Wapack Trail Race is part of the WMAC's Grand Tree Trail Race Series.