The traditional Pro Slams - Wembley, US Pro and French Pro were the top 3 tournaments. But what was the fourth in 1966?
Was it?:
- Madison Square Garden Pro - won by Rosewall
- West Australian Pro - won by Laver
- South Australian Pro - won by Rosewall
- Forest Hill Pro - won by Laver
Was it?:
- Madison Square Garden Pro - won by Rosewall
- West Australian Pro - won by Laver
- South Australian Pro - won by Rosewall
- Forest Hill Pro - won by Laver