June 2, 2018. Madison, New Hampshire. The Hoyt Family and TriTek Events would like to invite you and your family to join us for the 11th Annual King Pine Tri & Duathlon held at Purity Spring Resort. Purity Spring Resort is located on Rt. 153 in Madison, NH. The King Pine Tri & Duathlon is the perfect season opener for veterans of the sport looking to dust off the cobwebs as well as a beginners looking to experience their first race. We offer both Sprint & Olympic Distance Triathlon (both part of the NE Tri Tour), Duathlon & Aquabike divisions for individuals and relay teams. Visit our website at www.KingPineTri.com or call Vince at 603-520-8268 for answers to your questions.