As an amateur he won the New York Golden Gloves four times (1976, 1977, 1979, and 1980) and compiled a record of 64 wins and 7 losses, with 51 wins by knock-out. Green won the 1976 Sub-Novice Heavyweight Championship and the 1977, 1979 and 1980 Heavyweight Open Championships. Green defeated Anthony Zampelli to win the 1976 title. In 1977 Green defeated Guy Casale for the title. In 1979 Green defeated Ralph Fucci for the Championship and in 1980 Green defeated Merlin Castellanos for the title. He suffered a decisive cut loss in the 1978 tournament, preventing him from winning a fifth Golden Gloves title.