User blog comment:Dracko40/The Angry Illithid: "Will matchmaking ever find true balance?"/@comment-3140213-20110207145856

Well. Riot's approach on matchmaking relies on statistics, and unfortunately they do not have a wide spectrum of data tu do this. It's basically a question of how many games you, as an individual, won or lost. Which champion you take is irrelevant, because your team is gathered before that. So a major data is ignored, as your prowess with the particular champion you're abaout to choose is not taken into account. Then there is another data, which is your summoner level. This one is taken into acount only indirectly : your team, as a whole, should have roughly the same average level as the ennemy team. Then, there is the premade factor. If you're in a premade team, you are going to be pitted against presumably tougher opponents, being either players with better raw stats, or another premade team. These are the data that Riot get, and use. But there is another one that they can record and use : the trend. I suspects that there is something like this : if you win two games or more in a row, you're on a winning trend, and your stats are going to be surevaluated for the next game, so enventually you lose. On the opposite, there is certainly a "losing trend" recording. The aim of matchmaking is to bring you on an average V/D ratio.