Mastering MMR: Key to Success in League of Legends

League of Legends (LoL) is one of the world’s most popular online multiplayer games. As fun as it is to play, one critical aspect that all LoL players should understand is the matchmaking rating (MMR) system, which determines how League matches are created. In this post, we’ll delve deeper into LoL’s MMR system and explain how it works

In ‘League of Legends,’ matchmaking is based on players’ relative MMR, which is determined by their performance in previous games. MMR exists in ranked game modes, including Solo/Duo and Flex, where players compete against each other to increase their MMR points by winning games and lose some points when they lose. Moreover, MMR points earned in each ranked playlist do not carry over to other playlists, meaning your Solo/Duo MMR is only relevant in Solo/Duo matches.

The MMR system relies significantly on players’ win-loss ratio, but this isn’t the only factor taken into account. The LoL MMR system also takes into consideration numerous other factors like the players’ performance, their individual stats throughout the game, the champions they played with, their teamwork, among others. Notably, if a high-skilled player loses to a lower-skilled player, they will lose more MMR points. This is because winning against a weaker opponent is much easier, and thus the win will not be as rewarding as winning against equally skilled opponents.

The goal of the MMR system is to provide players with fair and balanced matches. The system relies on the Elo rating system, one form of MMR in which each player starts with a base MMR, and the system adjusts it based on wins, losses, and other factors. From your starting MMR point, you can gain or lose MMR points based on the quality of your win or loss. You can gain more points if you win against a higher MMR-rated team, and you can lose more MMR points if you lose to lower MMR-rated teams.

With that said, the matchmaking system does not only solely focus on MMR ratings when configuring matches. When creating a match, the game also considers the players’ roles to ensure a suitable selection of champions in each team. Thus, while matching players based on their MMR, the system also selects the best combination of players to create a balanced match where there’s a fair chance of winning for all players.


In conclusion, after reading through this post, you should now have an understanding of what MMR is in LoL, how it works, and its significance to the game’s matchmaking system. Also, the specific role MMR plays in each game mode, the Elo rating system, and the other factors that the MMR system considers when configuring matches. By understanding how MMR works, you can better understand how the game creates fair, balanced matches. Remember, playing consistently at a high performance level in every game, winning games, losing fewer games, and playing with teamwork, can all lead to higher MMR points, increasing your chances of being matched with similarly skilled opponents. So, work hard, keep practicing, and improve your skills to climb the ranked ladder.