I am in the "For the over 50"s " tournament, which was billed as one game per opponent, but it appears some pairs of players are playing two games, and earning scoring points for them.

Also I just finshed a game with one opponent, and another new game with the same opponent started.

i was having the same problem.  i think this is how it goes.

6 (2) 1 

6  rounds  (two games at once) one advance       

6     (1)   1

6 rounds (one game at a time ) 1 advance

Got it. A double round robin, but one game at a time per person.