Changes to matchmaking parameters and possible future addition of ARAM queues.

Posted on at 5:02 AM by Moobeat
How is everyone doing? Still waiting for your respective server to come up? Here is a red post collection to help stir things up!
Continue reading for a set of red post concerning the number of wins a player has factoring into the match making system and an update on the possibility of ARAM matchmaking.

Adding [Number of Wins] to the matchmaking parameters.
Here is Lyte's announcement that matchmaking now takes into account the number of wins an opponent has.
"We recently just rolled out a beta test of a new matchmaking change that is live in NA only. When we make sure it has the desired effects, we'll turn it on globally.

--

The matchmaker will now take into account the [Number of Wins] a player has in every matchmade queue (Normal SR, Normal TT, Ranked Solo/Duo, etc).

This means that for the first few minutes, the matchmaker will attempt to find teammates and opponents that have a relatively similar [Number of Wins] as you in addition to trying to find teammates and opponents that also have a similar [Elo]. However, this does not mean it's impossible to get matched into a game with a large difference in [Number of Wins]--it's just more rare.

Happy to discuss the matchmaking change here or any other matchmaking questions players might have. For reference, I've provided some older matchmaking discussions we've had in the past:

http://na.leagueoflegends.com/board/....php?t=1827767
http://na.leagueoflegends.com/board/....php?t=1976101

PS - RiotKiddington was the dev that did most of the work. "
Lyte then moved on to address several concerns about the changes:
[ But more wins doesn't necessairly equal more skill! ]: "We agree, [Number of Wins] doesn't directly correlate with higher skill; however, we've done some initial analyses and there's some tangible advantages to adding this parameter to the matchmaker.

We do know that adding this parameter may increase queue times for a number of players which is why we are doing a small beta test in NA first to determine the actual impact and whether we are ready to roll out the change to every territory."

[ Does this mean I can't queue with my friends who have more wins than me?? ]:

"You still can--the matchmaker will just try to find teammates and opponents that have a similar [Number of Wins] as your averages."

[ Are you sure it's been enabled? I'm still getting matched with people who have significant more games played than me. ]: "We're playing with the ramp up times; basically, for each second in the queue, how wide of a range in number of wins is the matchmaker OK with?

Right now it's pretty aggressive to make sure that players with an extreme low or high number of wins don't sit in queues for an arbitrarily long time."

[ Why did we need this? Is it going to replace hidden Elo? ]: "There's one slight nuance to your analysis: League of Legends has a level and unlock system that isn't true in Chess. As a player plays more games they get more IP which is then used to unlock Champions or Runes.

Secondly, we're not replacing Elo or the various other skill metrics in the matchmaker. We're simply adding a new parameter that the matchmaker will begin taking into account."

RiotKiddington, the Rioter that contributed the most to this project, stepped in to say:
"The system is still in beta stage, we are doing some changes over next few weeks.

There are few very hard edge cases we need to address. I will discuss it with Lyte tomorrow."
 ARAM Matchmaking
Speaking of RiotKiddington, he also popped up to deliver some news about the POSSIBLE addition of matchmaking for the ever popular ARAM/Proving Grounds mode. 
"I guess I will also poke around on the engineering side to get this prioritized. The creation of ARAM originally has been a PuG during a programming contest at Riot, few Rioters just decided to form a group to make an ARAM map and then add it to the custom game. Adding ARAM to the matchmaking queue requires a little more work, but once (game) design approves the concept any platform engineer can do it within a reasonable time. Then it will go though QA, release, etc..."