Because we have four teams competing, instead of just having wins and losses, each team wins a certain percetage of each battle. A first place is worth 5 points, a second place worth 3, a third worth 2 and a fourth worth 1. In a tie, the teams that tie split the points from the places they occupy. For example, two teams that tied for first would earn 4 points each. To determine the percetage of battles won, a team's total score is divided by the number of battles * 11.