Zack signed up at the Deva Stadium in June 2021. The teenage striker departed Stockport County after a successful spell in their youth setup, ending his time by winning the Academy 2nd Year Player’s Player of the Year Award.

He made his mark in Chester FC debut, scoring four goals in the second half of a 6-0 pre-season win over Elton Vale. Zack would make four league appearances for the club in 2021/22, as well as having loan spells with Atherton Collieries, Clitheroe and Leek Town.