Mark Duncan, Head Coach and AD at The Shipley School in Bryn Mawr, PA, will direct this GameBreaker Lacrosse Clinic. He has been at The Shipley School as their Head Coach for nine years and has served as Athletic Director for the past three years. This past season coach Duncan led Shipley to their best finish in school history with a 17-3 overall record, most wins in a season, capping the year off with a perfect 7-0 standing in league play while capturing Shipley’s 2nd Friends Schools League title and 3rd Championship in his tenure with Shipley. 2009 was also the  5th straight season with 10 or more victories for Shipley. In 2008 Duncan led Shipley to the schools third EPSLA playoff appearance in four years.  The Shipley School won its first ever Friends Schools League Championship in 2006 and in 2005 won their first Northeast League Championship with Mark at the helm advancing to the EPSLA state playoffs each year.   He was named Coach of the Year in both the Main Line Times and Main Line Life newspapers in 2005 and in the Northeast League.  Mark was also the Head Coach of Team Montgomery County at the Keystone Games in 2005.   Before his tenure at The Shipley School, Mark was the Head Offensive Assistant at Division III powerhouse Whittier College. While the offensive coordinator, Whittier finished 19-1 and was ranked in the Top 20 all season, winning a WCLL Championship.

Mark also enjoyed a great playing career. He attended famed Ward Melville High School in Long Island. In 1992, his team went undefeated and was crowned New York State Champions. Mark went on to play at Division I Lehigh University, where he led the nation in goals scored (54) in 1997. He was crowned the Patriot League Offensive Player of the Year in 1998 and was also 1st team All-Patriot league attackman in 1997 and 1998. A 1998 preseason All-American and North-South Team alternate, Mark holds the Division I and Patriot League record for scoring eight goals in one game in 1997 and finished his career at Lehigh as the all-time leading goal scorer with 129 goals. Mark is a high school and college US Lacrosse NCAA official in the Philadelphia area, where he also runs year round lacrosse clinics. He has directed camps across the country for the past five summers for GameBreaker Lacrosse Camps.