Born in Belfast, Lockhart began his professional career with Crusaders after playing at semi-professional level with H&W Welders and Carrick Rangers.
[1] Lockhart retired from professional football in April 2008,[2] but was later persuaded to return to the game by Bangor.
He signed for Ballymena United in 2009 and left join Championship 1 side Ards for the start of the 2010–11 season where he spent one year.
Lockhart joined Northern Amateur Football League side Sirocco Works in the summer of 2011 initially as a coach.
[7] Lockhart was described as having "an engine to burn and a no-nonsense approach to tackling [...] during a distinguished career in the local game.