Bry: It seems to me that the only two factors that should be used in calculating your score in a pond game should be the round in which you fall, and the number of players you beat, no? Taking in to account how well you played along the way doesn't generally figure in to a player's score in other games, so it makes sense that it wouldn't here either (imo).
(hide) If you want to play a game with an opponent of a similar level, you can define a required BKR range for a new game invitation. Then nobody with a BKR outside this range will be able to see/accept it. (Katechka) (show all tips)