Match Making Rating Tool - Page 118

Cloaken wrote:
Hey all -

Just wanted to hop back in this thread and elaborate a bit on something Kaivax mentioned a few pages back.



Over the course of the previous season the Masters League population strayed a bit above the ideal player distribution. Therefore, this season we made an adjustment to bring that back in line with our intended balance. We make tweaks like this occasionally as small variances are normal in a system like ours. And no - it doesn't mean the player base is shrinking.

Best thing you can do is get out there, play games, and know that the system will rightfully put you in the appropriate ranking. Sorry if this has caused some of you a bit of frustration. If you're one of those who has been placed down into Diamond League, I bet you can jump back up into Masters with a bit of game time. Then, you can be confident knowing that your achievement is even more exclusive than it was previously.

On January 08 2013 10:49 Mavvie wrote:
OK so Blizzard clarified that the masters offsets were changed, and not because player base decreased (seriously, this thread was fucking crazy)

http://us.battle.net/sc2/en/forum/topic/7415516833?page=16#312

On January 08 2013 11:58 sCCrooked wrote:
Its incredible how the first guy said flat-out "THERE IS NO BUG ITS YOU GUYS" and the second comes out and admits "Ok well it looks like you have enough threads that prove you can calculate that we changed the offsets so, yeah we did so that the player distribution amongst leagues stays where we want it".

They completely do a 180 in 1 page. This is why I never post on bnet. Their "authorities" mean nothing.

On January 08 2013 10:17 InfCereal wrote:


If you didn't get any good games recently, it'll just be guessing. Once you get a good game, it will fix it.

On January 08 2013 14:56 Excalibur_Z wrote:


Skeldark is overly pessimistic but it's true that Blizzard responses about the ladder frequently omit the entire truth. Kaivax's post said it wasn't a bug and that they change the league populations when they don't fit their targets. That is true. The translation behind that is that they use a prior distribution and alter the MMR breakpoints based on the previous season, for example say last season 2% of the population was above 2123.25 MMR, and last season's actual Master breakpoint was 2000 (which meant like 5%). This season, if they want to go back to Master=2%, they would change the breakpoint to 2123.25 (and yes, they do go into the decimals for this, the breakpoints are extremely precise which is quite funny considering they're hidden). What Cloaken says doesn't disagree with Kaivax's post (so it's not a 180 at all), it just clarifies it further if you're reading from the context I described.

I think the community managers tend to answer questions from the perspective of "I got demoted, why is this shit so buggy?" rather than "please explain in detail what happened with the large number of Master demotions, were the boundaries changed?" They probably think that the average player either doesn't know or doesn't care about how the ladder operates in detail, so their posts tend to omit that information.

We hide your real ranking with a complex system because we think you are not man enough to face it.
We have to correct the system from time to time because our player base moves away from bell curve.
This makes it harder every season to calculate skill.
The reason of this is that we loose our middle MMR player base.
Also we do it a bad way so there are promotion/demotion waves.
This season we did it again so that's the reason you got demoted
However this is not a problem or a bug because leagues and demotion/promotions are meaningless any-ways...
.

We have to adjusted the system.
The adjustment works great.
So its no bug at all.

On January 09 2013 18:20 Lucyan wrote:
So did the offset change in lower leagues like platinum?
Keep up the good work, you do a amazing job i've been using the tool since the beginning.

On January 09 2013 20:07 goofyballer wrote:
Hi, I've been using this tool on my main account with no issues (thanks for the great work!), but trying it on a new bronze account I've been having problems. After every game it says "need a game with better data 0/X" on the main screen where X is the # of games I've played, and the log has errors:

2:47:45 --------------------------
2:47:45 Game Start detected
2:47:45 Reading Memory ...OK
2:47:45 OK Found Memory-Profile in Active-Profiles!
2:48:26 Webgrabber: Player false
2:48:28 Webgrabber: Opponent false
2:48:28 PRE-Trigger done
2:52:56 Webgrabber: Player false
2:52:58 Webgrabber: Opponent false
2:52:58 ERROR Start with bad player
2:52:58 ERROR Start with bad player
2:52:58 ERROR LASTCHECK : Both players invalid
2:52:58 Gamecheck: false
2:52:58 POST-Trigger done
2:52:58 Player-data-Qualitiy: 0%
2:52:58 Opponent-data-Qualitiy: 0%
2:52:59 OK Uploader: game uploaded
2:52:59 Ladder Game Done!
2:52:59 --------------------------

Notably in the game log, in both PRE/POSTPLAYER 1/2 (so, four times total) it says this:

gamedate: ERROR
mapname: ERROR

and for both players in POSTPLAYER:

Looses: -9999
bonus: 0
change_points: -9999
adjusted_points: -9999

Let me know if there's any other info that would help, I just grabbed everything that looked useful while hopefully not making this too long.

On January 09 2013 23:37 CaliPark wrote:
Sc2Ranks search function is down - so the check fails to pull up good results. I'm having the same issue. It worked before, only until Sc2Ranks messed up did this happen. The leagues haven't updated in over 24 hours and normally refreshing a player in that league refreshes the whole league but not at the moment. Oh well.

Great tool btw - Skel, does mmrstats re-check Sc2ranks occasionally? Like for example, a week later reanalyze the potential MMR of opponents you've faced in the past? That could apply to this situation I guess.

On January 10 2013 01:19 skeldark wrote:

I dont not use the website "sc2ranks" in any way or form!

I work with the blizzard websites. So does sc2ranks.
Because blizzard have right now bugs on their website, my program and sc2ranks have problems....

On January 09 2013 21:07 Lucyan wrote:
So finally i got promoted to Diamond \(^o^)/, but the mmr tool says i need 1350 mmr points, right now i have 1287 points,that's a big differences.