Kammala jumla mai zuwa: Holík ya fara aikinsa na NHL yana wasa da Hartford Whalers a 1990 bayan da aka zaɓa ta goma ta hanyar su a cikin
1989 NHL shigar da daftarin aiki. Bayan yanayi biyu tare da Whalers, an canza shi zuwa New Jersey Devils inda ya buga wasanni goma, yana nunawa a matsayin memba na "Crash Line" tare da Mike Peluso da Randy McKay, kuma ya lashe gasar cin kofin Stanley biyu, a 1995 da 2000. Kafin kakar 2002-03, a matsayin dan wasa mai kyauta, Holík ya sanya hannu kan kwangilar shekaru biyar, dala miliyan 45 tare da New York Rangers.