The following formats are available in NSW Hardcourt Tennis Assoc.
note: super tiebreak will only be played if required

Doubles Only

X6DA-3	3 players per team	4 doubles sets per player	3 hours
X8DC-4	4 players per team	4 doubles sets per player	4 hours

Singles and Doubles

X6-3	3 players per team	1 singles set, 2 doubles sets per player	3 hours
X12-3	3 players per team	3 singles sets, 2 doubles sets per player	9 hours
X12-3 (ST)	3 players per team	2 singles sets, 4 doubles sets (plus super tiebreak) per player	9 hours