Players start at 
6:00(24),6:15(5),7:20(10),8:00(10),8:40(12). 
Players play First To 4 No AD Mini Sets. 
Three players get off. One (of the winners?) remains.
Three players waiting get on.
But one losing players probably won't have to
wait long to play again. Another match may
finish before they get off the courts so 
instead of waiting they play again.
Players waiting form a group of four so nobody 
is on the court with any of the other 3.
But there will be those that want to be partners
all evening. Players that play for 2 hours must 
wait for others to play 2 hours.