Zacha never spent a lot of time waiting for his name to be called on draft day. Sarnia of the Ontario Hockey League selected him with the No. 1 pick in the 2014 Canadian Hockey League Import Draft, and he was selected by the New Jersey Devils with the No. 6 pick in the 2015 NHL Draft.
Each team received a highly skilled, offensive-oriented player who during his time with Sarnia quickly developed into an effective penalty killer, one who was named the Western Conference's best penalty-killer by OHL coaches following the 2015-16 season.