It became an "Open" event in 1969. In 1971 through 1972 and from 1978 through 1989 it was a major tournament of the Grand Prix Tour. In 1973 the tournament was part of the Rothmans Spring Mediterranean Circuit. From 1974 through 1977 the tournament was part of the World Championship Tennis (WCT) circuit. In 1990 it became an ATP Championship Series Single Week tennis event.
