Valve released the new ranked seasons. All players must play 10 games to recalibrate. A first MMR distribution by medal is available using players’ data.
Announced about 20 days ago, the new seasonal ranked system has finally reached the main client. The old MMR is gone and after 10 calibration games you will receive a new shiny medal.
Here is all the info provided by Valve:
The rank medal represents your best performance level during a season.
The seasonal medal never decreases in rank once achieved.
The initial calibration games will be based on your previous skill.
Only after playing 10 games you will know the new placement.
Both your solo and party games are considered when evaluating your skill, but solo games have a bigger impact.
There are a total of seven ranks, and each one is composed of five stars to mark your progress towards the next medal. The Ancient and the Divine medals are achievable only through solo-play.
The new ranks: Herald, Guardian, Crusader, Archon, Legend, Ancient, and Divine.
December 5 update - All medals have been redesigned
Image by @wykrhm
Valve also expanded the leaderboard system to include more players.
Old vs new MMR and Distribution by medal
Reddit user clarinetEX - who kindly allowed us to use his data - shared a google form asking players their old and new solo/party MMR, the new medal, stars, number of victories during the calibration games, and more.
If you want to contribute, the form is available here. You can find all the info collected so far in this spreadsheet.
Using the data from the survey, u/mmrisjustamedal presented a first rough MMR distribution by medal:
Herald: 0 - 839 MMR
Guardian: 840 - 1679 MMR
Crusader: 1680 - 2519 MMR
Archon: 2520 - 3359 MMR
Legend: 3360 - 4199 MMR
Ancient: 4200 - 5039 MMR
Divine: 5040 - 5740+ MMR