OGS Rank: Looking for an explanation

[arielaviv01]

Hey!
Looking for an explanation on the ranking on ogs, what all the different numbers mean?

[BHydden]

Short version:
Kyu and dan are like grades
25 kyu being the weakest recognised grade, goes up to 1 kyu, then 1 dan comes next and goes up to 9 dan.
In theory, each grade difference should closely map to 1 handicap stone on a 19x19 board.
The bigger numbers are glicko rating points, which are similar to elo. Bigger = stronger.
You can read more about that here:

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…

[yebellz]

Here are your main numbers:

The middle row is your Glicko rating 1569 with a confidence interval of plus/minus 75. It’s a bit tricky to interpret that in absolute terms, since the position and scale of that number is a bit arbitrary, but that’s the underlying number used by the rating algorithm.

In the bottom row, you have your Glicko rating converted back into the kyu-dan rank system, which shows that your Glicko rating corresponds to approximately 4.7 kyu, with a confidence interval of plus/minus 1.1 ranks.

On your profile page, you have this chart:

This is just a breakdown of your rank across different board sizes and game speeds. The switch in the top-right toggles between showing the Glicko rating vs the rank conversion.

Here is a Sensei’s library article that provides more about the general concept: Rank at Sensei's Library

[arielaviv01]

Thx alot!