> Most of the shortcomings [of Elo] can be traced back to the fact that the system is too slow to find a player’s correct rank, and too slow to adapt when jumps in strength occur.
> The problem of slow moving ratings is a well-known problem with Elo implementations. In response to this, Prof. Mark Glickman developed the Glicko, and later Glicko-2, rating systems which address this problem very well and are fairly widely used
A few weeks ago they then made an update to their implementation of Glicko-2, where—during the announcements they summarized many interesting statistics on how the system has panned out for them: https://forums.online-go.com/t/2020-rating-and-rank-tweaks-a...
You can read their rationally for it in this forum: https://forums.online-go.com/t/ogs-has-a-new-glicko-2-based-...
The key takeaway is this:
> Most of the shortcomings [of Elo] can be traced back to the fact that the system is too slow to find a player’s correct rank, and too slow to adapt when jumps in strength occur.
> The problem of slow moving ratings is a well-known problem with Elo implementations. In response to this, Prof. Mark Glickman developed the Glicko, and later Glicko-2, rating systems which address this problem very well and are fairly widely used
A few weeks ago they then made an update to their implementation of Glicko-2, where—during the announcements they summarized many interesting statistics on how the system has panned out for them: https://forums.online-go.com/t/2020-rating-and-rank-tweaks-a...