[G] Comprehensive SC2 League and Ladder Guide - Page 9

On March 12 2011 05:21 Archerofaiur wrote:
Does your MMR change?

On March 12 2011 05:07 Archerofaiur wrote:


This is the heart of what i was saying. At first you would be playing more gold.

Than as your uncertainty level dropped you would be playing more bronze. These games would take longer to find because the system would try to match you with your now lower uncertainty (which is closer to bronze which are more seldom). You would win these games thus propelling your uncertainty back to its original value.

On March 12 2011 05:19 HaIf wrote:


Let's just put numbers to this.

Assume there are 100,000 active players on the server you are playing.

This means there are :
20,000 Bronze (Rank 100,000-80,000)
20,000 Silver (Rank 79,999-60,000)
20,000 Gold (Rank 59,999-40,000)
20,000 Platinum (Rank 39,999-20,000)
18,000 Diamond (Rank 19,999-2,000)
2,000 Masters (Rank 1,999-1)

If you are in the middle of the silver league, skill wise, this puts you at rank 70,000th

Now assuming the worst 15,000 players quit, while the other remain active, the ladder will re-balance to the following :

17,000 Bronze (Rank 85,000-68,000)
17,000 Silver (Rank 67,999-51,000)
17,000 Gold (Rank 50,999-34,000)
17,000 Platinum (Rank 33,999-17,000)
15,300 Diamond (Rank 16,999-1,700)
1,700 Masters (Rank 1,699-1)

Your skill rank will not have changed, and you will remain at 70,000th, which places you in the bronze league.

(Please indicate if anything is wrong with this analysis.)

On March 12 2011 05:39 Excalibur_Z wrote:


Yeah that's basically correct. It's technically not accurate to equate fixed percentages like that (because it's MMR breakpoints and not percentages that define the league boundaries). However, the MMR breakpoints themselves equate to estimated percentages.

On March 12 2011 05:36 Archerofaiur wrote:
So if your MMR will drop over time and your points drift towards your MMR over time shouldnt we see a drop in points over time?

On March 12 2011 05:48 Archerofaiur wrote:
So points dont migrate toward MMR than. MMR should be dropping over time and the bonus pool causes points to rise over time.

On March 12 2011 05:58 Archerofaiur wrote:
Solely adjusted points do but points (the value you see on Battlenet) dont.

On March 12 2011 06:28 Archerofaiur wrote:
Ok so that leads to the next line of questioning.

If MMR is gradually decreasing = pull to put you in a lower league
and Points are gradually increasing = pull to put you higher in your individual devisional league

Does this not create a paradoxical effect where players who play allot* will rise in their individual divisional league but than suddenly drop to a lower league?


*use their bonus points but are also at risk for MMR deflation

On March 12 2011 06:28 Archerofaiur wrote:
Ok so that leads to the next line of questioning.

If MMR is gradually decreasing = pull to put you in a lower league
and Points are gradually increasing = pull to put you higher in your individual devisional league

Does this not create a paradoxical effect where players who play allot* will rise in their individual divisional league but than suddenly drop to a lower league?


*use their bonus points but are also at risk for MMR deflation because they are active

On March 12 2011 07:02 Excalibur_Z wrote:


It's not actual deflation, it's more like recalibration. The "worth" of a given MMR value changes over time based on the current player distribution.

On March 12 2011 07:04 Archerofaiur wrote:



But the paradoxical effect still holds. You could be rising in your individual league and than all of the sudden drop to the next lower league. Meanwhile the inactive players who were are the bottom of your original league would remain there.

On March 12 2011 07:14 Excalibur_Z wrote:


Yeah, that does happen. I've read a lot of posts that say "I was rank 10 in my division and I got demoted wtf!" not realizing that their adjusted points were probably very low and MMR probably even lower than that. It's a big gripe a lot of people who don't fully understand the system have, and that's understandable because on the surface it is paradoxical.