See here:
http://www.chiefdelphi.com/forums/sh...ad.php?t=23605
And here:
http://www.chiefdelphi.com/forums/sh...ad.php?t=23584
Yes, winning is important, but so is the losers score, it is sure that many teams will have the same number of wins, with only 8 or so rounds and 50 teams. Without a good losers average score, a team will be ranked much lower. Of course if you win every match, you are almost guaranteed a spot in the finals.