2009-10: Brian Hart skated for Brewster Academy in New Hampshire after winning a state public school championship with Maine's Greely High School in 2008-09. Hart attended USA Hockey's Select 16 Player Development Camp in the summer of 2009 and in 28 games with Brewster he scored 27 goals with 24 assists.
2010-11: Hart transferred to Phillips Exeter Academy and was the leading scorer for the Big Red. He scored 29 goals with 32 assists in 27 games. Hart committed to playing college hockey at Harvard in 2012-13.
2011-12: Hart was named to the All-New England team after a successful senior season that saw Phillips Exeter reach the New England Prep School semifinals and top the 20-win plateau. Hart scored 30 goals with 32 assists for the Big Red. He was invited to the NHL Draft Combine and ranked 54th amongst North American skaters in Central Scouting's final rankings prior to the 2012 NHL Draft.
Hart has the potential to be a prototypical power forward with offensive ability. He has the size to leverage scoring opportunities in the offensive zone and a good shot to help close the deal. Hart does not have a high skill level, and he has to work on the defensive side of his game. But he projects to be an up-and-down winger who can be a threat in the offesnive zone.