The new Arena Rating System.

[Enim]

So, there's a GM that actually tried to explain this, I don't know if it's solid information, it may all be fake.
But to me, it makes more sense then anything else posted.

http://www.arenajunkies.com/showthread. ... post587742

This is what i was told by a gm when asking him about the Arena system.

I posted this on the WOW pvp forums and it was deleted in under 1 minute.

http://img441.imageshack.us/my.php?image=firstpy4.png
http://img299.imageshack.us/my.php?image=secondpv1.png
http://img299.imageshack.us/my.php?image=thirdwh2.png
http://img136.imageshack.us/my.php?image=fourthjk9.png

[wallen]

Blue post:

We recently introduced a new Arena matchmaking system with the intent of better matching up players against opponents of similar skill level, and to address potential abuses under the old system. We realize that many players have questions regarding the new system, and as such, we would like to provide more insight into the new matchmaking system.

* First and foremost, the primary goal of the new Arena matchmaking system is to match players against opponents of similar skill, regardless of your or your opponents’ team rating. This means that once an estimated skill level is determined, you will more likely be matched against other players of a similar skill level. Please note that the estimated skill level is constantly being evaluated and will adjust based on each team’s continual performance. Ratings that are won or lost also take into account skill level, so that you will not suffer a high penalty if you lose against a team that is much better than their actual team rating.


* Another important aspect of this new Arena matchmaking system is a smaller range of maximum rating that can be won or lost. Because of the differences between how the new system assigns rating points at the end of a match, we are still tweaking rating gain versus loss per match to improve the experience.


* If you were previously ranked with a high skill level and decide to create a new team, it should now be much easier to reach your team’s correct rating. This ensures that players will not feel penalized for moving between teams, and high ranked teams will not feel penalized for trying out new players without much risk to the team rating itself.


* Finally, the core and fundamental reason for the new Arena matchmaking system is for players to participate in Arena games that are fun. We feel that with this new system, higher ranked players will most likely find the challenges that they seek, newer players will no longer feel that that Arenas are closed to them, and players will not feel as penalized for trying new things in the Arenas.


We like the way that matchmaking works in the new system and feel that it is working as expected. However, we acknowledge that there are some aspects of the way rating is calculated under the new system that could use some tweaking. As with all things, your enjoyment of the game and its systems are very important us, and this system was implemented in an effort to further promote the enjoyment of the Arenas. As always, we welcome your feedback and would constantly be striving to make this system even better.

source: http://forums.worldofwarcraft.com/threa ... pageNo=1#0

[Flattie]

Explanation of Each Rating (Source)

Because of the way the new system works, there has been some question as to the purpose of each of the different ratings, so here goes:

* Team rating: Team rating is the primary measure of a team’s skill during the course of its existence. Titles and arena points are based on team rating.
* Personal rating: Personal rating only exists to ensure that a player has participated enough on a team to deserve the benefits of being on that team. When personal rating gets close enough to team rating, we judge it is likely the player deserves the benefits of the team.
* Matchmaking rating: This rating exists to ensure quality match-making despite players changing teams. In addition, the theoretical mathematical foundations of the new matchmaking system allows this rating to adapt much faster than team rating and personal rating, making the entire system more correct. In our measurements to date, this rating has been quite precise in predicting the outcomes of future matches.

One important point to note is that the personal rating currently converges towards the matchmaking rating instead of the team rating, which we realize can cause lot of confusion and frustration. We will be making an adjustment in the near future that will cause the personal rating to converge towards the team rating instead of the matchmaking rating, which should alleviate much of the current concerns.



How Matchmaking Affects Team and Personal (Source)

Partners on the same team can have diverging team ratings if their matchmaking ratings are different. As mentioned above, we will be adjusting it so that personal rating will no longer diverge from team rating and will instead always converge towards it.

Future Changes to Personal and Team Rating Convergence (Source)

Team rating currently converges towards the average of the matchmaking ratings on the team. Personal rating currently converges towards each individual's matchmaking rating. As such, the team rating currently ends up in the middle of the personal ratings of each member of the team, usually around the average personal rating of the team. As mentioned above, we will be adjusting this to keep personal ratings in line with team ratings.

Matchmaking Rating Included Previous Season 5 Win/Loss History (Source)

We included history from before the implementation of the new system in determining the matchmaking rating. If you or your partner played with another player before the new system, data from those games would also be included in your current matchmaking rating.

High Rated Teams Gaining 0 Points for Wins (Source)

This would happen if:
1. They are matched because the first team's matchmaking rating is near the second team's matchmaking rating.
2. The first team doesn't lose a lot because their team rating is lower than than the second team's matchmaking rating.
3. The second team doesn't win a lot because their team rating is higher than the first team's matchmaking rating.

Matchmaking Rating and Brackets (Source)

The matchmaking rating is separate for each bracket, and the matchmaking ratings do not interact between brackets in any way.