2009-10: Matt Grzelcyk skated for Belmont Hill High School in Massachusetts. In 31 games he scored 2 goals with 18 assists and 30 penalty minutes. He attended the USA Hockey National Team Development Program evaluation camp in the spring and was invited to join the program in the 2010-11 season.
2010-11: Grzelcyk moved to Ann Arbor, Michigan to play for the USA National Team Development Program’s U17 team and represented the USA in the 2011 U17 World Hockey Challenge. He played 55 regular season games for the NTDP U17 team and scored 2 goals with 16 assists and 40 penalty minutes. Grzelcyk scored 1 goal with 5 assists and 2 penalty minutes in five games at the World Hockey Challenge as the USA won a silver medal.
2011-12: Grzelcyk returned to Ann Arbor to skate for the NTDP’s U18 team and was part of the gold medal-winning USA U18 team at the 2012 World Junior Championship. In 60 games with the NTDP U17 team he scored 3 goals with 20 assists and had 22 penalty minutes. Grzelcyk scored 1 goal and was +5 with 2 penalty minutes in six games at the WJC. He was ranked 177th amongst North American skaters in the Central Scouting final rankings and was selected by Boston in the third round (85th overall) in the 2012 NHL Draft.
2012-13: Grzelcyk was the leading scorer amongst Boston University defensemen and was selected to the Hockey East All-Rookie team as a freshman. He scored 3 goals with 20 assists and was +12 with 26 penalty minutes in 38 games. The Terriers finished in a three-way tie for third place in Hockey East and reached the league championship game; falling 1-0 to regular season champion Massachusetts-Lowell in long-time coach Jack Parker’s final game. Grezelcyk travelled to Ufa, Russia with Team USA but was the last player cut prior to the 2013 World Junior Championship.
2013-14: Gzelzcyk played in 19 games for Boston University as a sophomore — suffering a separated shoulder in a January practice shortly after returning from the 2014 World Junior Championship. He scored 3 goals with 8 assists and was -7 with 16 penalty minutes skating for the Terriers. Boston University finished ninth in Hockey East and lost to Notre Dame in a first round playoff game. Grzelczyk was the leading scorer amongst defensemen for the USA at the WJC, one point behind forward Nic Kerdiles for the squad’s overall points lead. In five games he scored 2 goals with 4 assists and was +1 with 2 penalty minutes. The USA finished fifth after a 5-3 loss to Russia in the quarterfinals.
Grzelcyk is a small, but highly mobile defenseman with excellent offensive instincts. He is a strong puckhandler who can rush the puck and drive the offense. Grzelcyk is a power play weapon thanks to his sharp distribution skills and his ability to find soft spots in defensive zone coverage. Defensively, Grzelcyk brings a good compete level and is a determined player but his positioning is still a work in progress and he is sometimes at a disadvantage against bigger, stronger forwards due to his lack of bulk.
Grzelcyk is in his junior season at Boston University in 2014-15. Led by 2015 draft-eligible freshman Jack Eichel the Terriers have been one of the top teams in college hockey and Grzelcyk is the leading scorer amongst defensemen. His skating style and ability to move the puck are well-suited to the college game but like other smaller players coming out of the NCAA level he will be challenged to compete in the more physical, tight-checking pro game. His skill set is similar to two other defensemen currently in the Bruins' system — Torey Krug and David Warsofsky. Whether he can match their potential is uncertain at this point.