Leith was a forward and prior to joining Melbourne in the last Victorian Football Association (VFA) season in 1896 played with Carlton. He was a centre half forward in Melbourne's 1900 premiership team and topped the club's goalkicking on five occasions in his career: 1896, 1897, 1899, 1902 and 1907. When having a set shot at goal he used the place kick and once, in a game against St Kilda, kicked five goals from place kicks. He retired at the end of the 1908 season but returned to the league in 1911 when Melbourne were struggling, this time playing as a defender.[2]