Zack was a recipient of the 2009 Lowe's Senior Class award. He graduated with a Masters degree in business from Bryant University. Prior to that was named a four-time All-American (2006-08) at Duke University and Bryant University (2009). Greer left college as Division 1's All-time leading goal scorer with 248 markers and tied the NCAA Division-1 record with 353 career points. Amoung Greer's college career he also won the Jack Turnball Award, which is given to the USILA Attackman of the year.
Son of Irene and the late Dan Greer. Zack's is joined in professional sports with his brother Bill, who plays in the NLL and also His cousin Shawn Thornton who plays for the Boston Bruins of the NHL. Greer led Canada to the championship gmae at the Internation Lacrosse Federation Under-19 World Champions where he scored 16 goals with one assist to earn a spot on the IFL All-World Team. Greer also played with the Ontario Lacrosse ASsociation's Whitby Warriors, scoring 72 goals with 72 assists and earning team MVP honors.