It was an event of the Grand Prix tennis circuit between (1970–1989), except in 1971 when it was part of the World Championship Tennis (WCT) circuit, although it was also open to non-WCT players.
Nó là sự kiện của Grand Prix tennis Circuit giưa năm (1970-1989) đồng ý năm 1971 khi nó đã là 1 phần của World Championship Tennis (WCT) circuit, mặc dù nó cũng mở rộng đến non-WCT players.