How can we measure the quality of different leagues using player ratings? Our +/- model should facilitate this, given that there is enough interaction between players of different leagues. The video below uses our ratings to look at how well the Chinese Super League measures up to more familiar leagues:
Below is the complete ranking of 39 different leagues (well, divisions) in the current database, based on the average (mean) rating of all players that have appeared in the latest season of each league:
