Welcome to Will Duffy Goaltending Instruction, home of the brightest goalies in the country! Will Duffy offers elite level goaltender training in Colorado based on education, not indoctrination. Backed by a passion for the game and a tremendous knowledge of the most difficult position in all of sports, Will Duffy enters his 9th year of goaltender training, including private instruction, goalie specific skating, summer camps, and much more!