Career
He is currently playing with the Sarnia Sting of the Ontario Hockey League (OHL). Zacha was selected sixth overall by the New Jersey Devils in the 2015 National Hockey League Entry Draft. Zacha was selected first overall by the Sarnia Sting of the Ontario Hockey League at the 2014 Canadian Hockey League Import Draft.
Zacha made his Czechoslovakian Extraliga debut playing with The Human Context Bílí Tygři Liberec during the 2013-2014 Czechoslovakian Extraliga season.
On August 11, 2015, Zacha was signed to a three-year entry-level contract with the New Jersey Devils.