Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
The 1985 South African Open (also known as the 1985 Altech South African Open for sponsorship reasons) was a men's tennis tournament played on outdoor hard courts in Johannesburg, [South Africa that was part of the 1985 Nabisco Grand Prix. It was the 82nd edition of the tournament and was held from 7 through 13 October 1985. Unseeded Matt Anger won the singles title.
Matt Anger
Colin Dowdeswell / 
Christo van Rensburg
Amos Mansdorf /