Mark won the Australian Men's Doubles title in 1959, 1960 and 1961 partnering Rod Laver.

At the 1959 Australian Championships, Mark beat Andrés Gimeno in four sets in the quarter finals.

According to The Sydney Morning Herald, "Mark hit some wonderful passing shots, particularly off the forehand side.

In 1960 Mark won the Kent Championships at Beckenham beating Butch Buchholz in the final.

[3] In 1962, he won the singles title at the South African Championships after a four-set victory in the final against Gordon Forbes.