Marek Kopiowski was born in Wroclaw, Poland. He played as a Point Guard at all youth levels in Poland. Marek competed in Youth Euroleague EYBL and the U-18 Polish League. While playing with Prokom Trefl he won the U-18 Championship of Poland and later signed pro contract with 17-time champion of Poland - WKS Slask Wroclaw (2League). During his playing career, Marek was also coaching the U-16 team for Gimbasket Sycow and coached kids at three different elementary schools in Wroclaw. That same year he attended the Academy of Physical Education in Wroclaw where he studied Physical Education. In 2013, After moving to Canada he played for the Algonquin Thunder varsity team. Marek coached at Ontario CP Program, and worked at Team Canada U-17 and U-18 Assessment Camp.