If a board has not been started and all others are practically finished then the T.D. I understand can time-out the 4 players and when scoring on "Scorebridge" delete that board from the scoring so their % result is calculated on the number of boards they played not the number they should have played.
If the T.D. decides to stop them playing out the board, then should that board be deleted or averaged as then one of the pair might be penalised more than the other. comments please.