Meaning


To compensate for the fact that in tournaments with few games not all teams play against opponents of equal quality, the normal per 50 possessions statistics can also be adjusted to the opponents to have fairer comparisons between the teams.

Calculation


The offensive and defensive rating (goals scored and conceded per 50 possessinos) of each team in every game is compared to what would be expected based on the number of goals the opponents scored and conceded per 50 possessions in their other games. The differences between the actual goals scored and conceded can then be added to the goals scored or conceded per 50 possessions to have an adjusted rating.

Interpretation


Allows fairer comparisons of the quality of teams in competitions where everyone doesn’t face each other.