He also played Australian rules football and made two appearances in 1942 for Richmond in the Victorian Football League (VFL). Both of Hay"s VFL games were finals. Richmond lost the grand final by 53 points and Hay never played again for the club
Hay went on to have a distinguished career in the Australian Army, serving as Commander of Australian military forces in Vietnam in 1969 and 1970.
He was Commandant of the Royal Military College in Duntroon.