Proposal: segment ranking system by board size

[Groin]

@pwsiegel

I hope this hasn’t been discussed to death elsewhere, but I have some concrete evidence to contribute.

It has been. It’s something coming up again and again.

@pwsiegel

Some version of this has already been done, in the sense that I can see my estimated playing strength for 9x9, 13x13, and 19x19 in my profile. But it seems that only the aggregated rating is used when displaying my rating to other users, and when setting handicap / komi.

These playing strength on different sizes are only informative. Every decision are not linked to them but to your global rating (like, pairing, calculating a new rating, etc…)

This should be the latest important thread on ogs rating

2021 Rating and rank adjustments

tl;dr - Expect a notable bump in your rank. The lower the rank you are, the larger the increase. This transition is planned to take effect around 2021-01-28T01:30:00Z (UTC) . Summary of the update: We are attempting to align our low dan ranks to be comparable to the EGF and AGA low dan ranks. Currently we are projecting that a 1d OGS rank will be about .7 stones weaker than an EGF 1d and about 0.8 stones stronger than an AGA 1d. These numbers will be re-evaluated once the dust settles, but…

This announcement has 670 answers and is linked to 39 other threads (see at the bottom of the OP).

In another older announcement on ranking, if I remember well, explaination were given with proof by simulations that there was not enough distortion in the way handling different sizes together to justify a stratification as you suggest. Maybe someone else may provide a direct link.

Edit: ok i found what i think is the most relevant topic

@anoek

2. Does it make sense to continue counting 9x9, 13x13, and 19x19 games toward the same overall rank like we do?

There are some interesting Q/A later in the thread