Career
He started the 2006–2007 season as inaugural captain for the Auckland-based New Zealand Knights, but left the club in December following a falling out with management, before playing out the season with Perth Glory. He appeared in the English Premier League and in the Union of European Football Associations Champions League, playing for Leeds United. However, he failed to reach his full potential in England due to constant injuries.
In England he is probably most remembered for playing in Barcelona"s 4–0 thrashing of Leeds despite them going on to reach the semi-final.
He also he came on as a substitute for Jonathan Woodgate against Liverpool in a memorable 4–3 victory for Leeds in November 2000. In New Zealand he played for Green Bay-Titirangi United, Waitakere United and Central United.
He also played for Walsall in England. Hay appeared for the New Zealand national football team, the All Whites.
In 2006, Hay was awarded the captaincy of the All Whites.
In 2007, he retired from international football to pursue a teaching career at Sacred Heart College in Auckland which also involves him training the First XI and youth development teams. Hay courted controversy in June 2012 by criticising All White coach Ricki Herbert"s tactics following a defeat in the 2012 OFC Nations Cup to the Solomon Islands. Hay was quoted as saying "lieutenant"s a little bit scary that you"ve got one person dictating all the ideas and there"s nothing fresh coming through.
He"s got tactically lazy and to play three at the back in Honiara was horrific in those conditions, with the type of players we had available to us.".