So.. you might wanna keep in mind this seasons wonky.
Prior B5 was bottom MMR range and it scaled up to Challanger. 27 possible Titles you can have. B5-B1, S5-S1, G5-G1, P5-P1, D5-D1, Masters, Challanger. 5+5+5+5+5+1+1. The MMR titles to the MMR range are all represented here in that range.
Now there is Iron and GM and we took out 5 Divisions of titles. So I4-I1 Etc etc. Looks like this. 4+4+4+4+4+4+1+1+1. This, is also exactly 27 seven tiles.
The concept far as I know it is that for a title to matter it needs to represent a skill range. The way to do that is have expectations for the MMR range each Title is ment to represent when an accounts low uncertainty... basically the point some ones floats around after 100's of games. Where players get stuck until they improve or get worse (effectively as skill is measured by ability to win you can get worse at the game due to the nature of the constantly shifting meta. Simple example is dedicated high MMR OTP getting their main reworked and not being good at the new kit.)
So... The ratings folks used from prior season clearly don't have the same values. Your still looking at the entire Ladder having the same MMR values but the Tieres to MMR representation have changed. Riot might compensate for this with different divisions representing a higher range, but assuming that its similar MMR ranges for everything besides the very bottom of iron and the top MMR?
On paper what that would look like is,
Iron is b5-b2.
Silver B1-S2.
Gold S1-G2
Plat G1-P2
Diamond P1-D2.
But if riots changed the range values? completely up in air.
Also making newbies starting MMR lower this season? that's expected to shift the entire ranked ladder down to lower values.
You stand to win more games off a bad player in your MMR then you do to lose them. something like 11.11% I think odds your team is favored to win because of 1 awful player. Or 61.11% V 39.99%. Basically fair to call it 1.5 to 1 odds favored. Not the best at this type of math and I have gotten it wrong before so eh. I feel I am conveying the concept correctly even if I goofed the exact value. You occupied a slot on your team always so 9 open positions result in the Enemy team having higher odds for the worst player... assuming here that your never the weak link.
So everybody who used to maintain their position because of newbies sinking thru their MMR... now lost that source of MMR gain.. so they sink also.
End result... I recommend all players should expect the MMR range and values for all accounts to sink. Just the realistic expectations for the changes riot made in accordance to the MMR system.
Otherwise we see an influx of folks who get hella tilted about not being their "correct rank" and creates more negative feedback and some tilt streaks.
Tldr. Add about 2-3 divisions to current rank to get a feel for what your current MMR range would have been last season.
