Croon started playing hockey at LSC Alecto. Since 2014 he has played for the first team of HGC, he made his debut at 16 years old. In 2016 Croon and his team finished third in the Hoofdklasse but were eliminated in the playoffs to win the national championship. After 3 seasons with HGC, he transferred in the summer of 2018 to Bloemendaal.[2] In his first season with Bloemendaal, he won his first Dutch national title by defeating Kampong in the championship final.[3]