While it is highly unlikely, your MMR can be different from your league rank. While the league system that was introduced in Season 3 shows your rank publicly, the only Riot knows your true MMR. It is the most important part of your ranking-up process as it determines your LP gains and losses. Depending on how well you perform in different modes it can be higher or lower. The difference between MMR and your League RankĮvery League of Legends account has MMR associated with it. If it wasn’t there, games would be imbalanced and much more frustrating. Instead, it also exists for normal games and even ARAM. Instead, MMR cares only about wins and losses, so make sure to try your best in every game and get those wins.Īdditionally, MMR is not only important for ranked game modes such as SoloQ. It doesn’t take into account kill participation and farming. Furthermore, it determines how much LP you will gain after a win, or lose after a defeat. It’s used for placing players of similar skills in the same games. It is a fundamental part of the League of Legends ranking system. Since then, it has been also used in video games, basketball, American Football, and even scrabble. MMR or Elo has been invented as a method of ranking Chess players. The difference between MMR and your League Rank.