In a career spanning 22 seasons, McGlashan played for 9 professional football clubs and scored 210 goals in 609 league appearances.
McGlashan signed for Dunfermline Athletic midway through the 1983-84 season, where he stayed for 6 months and scored one goal in 16 league appearances.
McGlashan signed for Clyde's fiercest rivals Partick Thistle at the start of the 1990-91 season, where he stayed for 3 years and scored 30 goals in 103 league appearances.
[2] McGlashan signed for Ayr United at the start of the 1993-94 season, where he stayed for 1 year and scored 3 goals in 36 league appearances.
McGlashan signed for Montrose's arch rivals Arbroath at the start of the 1998-99 season, where he stayed for 3 years and scored 33 goals in 88 league appearances.