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When Riot announced last year that they would be implementing positional matchmaking into the League of Legends ranked queues in Season 9, they were met with a mix of skepticism and couched optimism. While many immediately saw flaws and possible exploits that such a system could offer, others hoped that it would be a solution to the complaints of poor matchmaking that plagued Season 8. Instead, we got the worst of both worlds. This season, there have been cries from pro players, high elo players, and coaches alike to do away with positional matchmaking and reset the ranked ladder.
Developing Game-Structure Sensitive Matchmaking System for Massive-Multiplayer Online Games
Your Matchmaking Rating MMR is a number that Riot uses to determine your skill, and when matchmaking, the skill of your opponents. It goes up when you win, and goes down when you lose. When looking for games to put you in, it will look for other players whose numbers are close to yours. You have a separate MMR in each queue, so you can climb in one queue without it affecting others.
Matchmaking is the existing automated process in League of Legends that matches a player to and against other players in games. The system estimates how good a player is based on whom the player beats and to whom the player loses. It knows pre-made teams are an advantage, so it gives pre-made teams tougher opponents than if each player had queued alone or other premades of a similar total skill level Riot Games Inc. The basic concept is that the system over time understands how strong of a player you are, and attempts to place you in games with people of the same strength.