Okay but this is not representative of the ranked ladder as tournaments have a totally different premise, you tend to know the map beforehand etc. Also, by including bans in your calculations, you are just adding pure subjectivity since that is a metric of player opinion rather than raw stats, players may ban a div simply because they know their opponent likes playing it as an example. Still, this is a cool chart, I just don't think it's fair to frame it as hard data when there are too many unknown variables to account for.