 During the 2007–2008 ECHL Season, he was named to the All-Star Team, and was chosen as the American Conference's starting Goaltender.Prior to the 2008–2009 ECHL Season, Kowalski was traded to the Phoenix RoadRunners of the ECHL, for Bryan Esner and signed on July 22, 2009 a contract with HC Valpellice.On December 3, 2009 he scored an empty net goal against Sportivi Ghiaccio Pontebba.