Exact explanation of the calculation of the rank

[_KoBa]

Yeah the way it works is “hidden” deep inside the forum… the first post here is about how glicko2 is implemented, the way how ratings convert into ranks is on post 29:

OGS has a new Glicko-2 based rating system! [2017]

tl;dr We’re switching to a Glicko-2 rating system, which should be great for a lot of reasons. All of your past ranked games have been accounted for during this transition. Hello OGS! For the past several years we’ve been using a rating and ranking system based on Elo developed by the European Go Federation. It has served us reasonably well, but there have been some shortcomings when applying that system in an online setting. Most of the shortcomings can be traced back to the fact that the sy…