2009-10: Brendan Collier was the third leading scorer for Malden Catholic HS in Massachusetts as a sophomore. He was second on the team with 19 goals, behind Mike Vecchione (25) and had 43 assists.
2010-11: Collier was one of Malden Catholic's top scorers as the team captured the Super Eight Massachusetts high school championship. Collier scored 30 goals with 45 assists in 25 games. He committed to playing college hockey at Boston University in 2013-14.
2011-12: Collier scored 26 goals with 38 assists and had 36 penalty minutes in 25 games as a senior for Malden Catholic. Malden Catholic won its second straight Super Eight title – defeating BC High, 3-1, in the championship game and finishing with a record of 20-1-4. Collier represented Massachusetts at the Bauer NIT, scoring two goals in three games. He was ranked 143rd amongst North American skaters in Central Scouting's final rankings and was selected by Carolina in the seventh round (189th overall) of the 2012 NHL Draft.
Collier is playing the 2012-13 season in the EJHL and will attend Boston University starting in the fall of 2013.