Hay was born in Edinburgh and educated at Liberton High School. From there he went on to work as an electrical engineer for the National Coal Board. Latterly he worked as a sales representative.
Rugby Union career
Amateur career
Hay was a fullback. He started his rugby career at junior club Liberton, a team he captained at the age of 18,[2]
He then moved to play for Boroughmuir.
While still at Liberton he was capped by Edinburgh District. This was an astonishing feat for a junior club player and his tough tackling reputation was sealed.[4] He carried on representing the district when he moved to Boroughmuir.
International career
It was when Hay moved to Boroughmuir in 1972 that he went on to gain international recognition.