Originally Posted by dzell
Yes! The area around 1100-1300 range is very chaotic it seems. I dropped to 900, worked my way up to 1100 and skill level is much more varied than the 900-1100 range.
Could you somehow use the # of games played to help smooth out the matchmaking process? I think this would make it easier to climb out of your elo range after your own personal skill level has improved. Both the number of games you've played AND your elo will be used to match you up with people.... I think this would be more accurate than elo alone. Could even factor in normal games played.
< 150 ranked games played, player skill very volatile
150-300 ranked games played, player skill more stable
300+ ranked games played, player skill very stable
Glicko systems have a 'confidence rating,' which is an extra parameter that represents how confident the system is that a player is currently at his true skill level. I think Glicko tries to solve the concerns you have raised.
Elo systems have K-factors, which are similar, but basically represent how important a match is. Early in a player's career, a K-factor starts high because the first few matches are important for determining the relative tier a player should be at.
League of Legends, however, has additional complexity which is why traditional Glicko or Elo systems are not sufficient. For example, a 1800 Vayne player is not necessarily a 1800 Annie player. This means that player performance and consistency varies greatly from game to game, adding a lot of additional variables that are hard to capture with traditional matchmaking systems.
In saying this, there are a lot of smart people at Riot, and we are going to do what we can to make the best matchmaker possible--it will never be perfect, but we will always keep working on it.