Calculable efficiency of rating systems

[ResidentSleeperGoClu]

Is it this post?

2020 Rating and rank tweaks and analysis

tl;dr - Ratings and ranks have been tweaked a little, there should be a bit less volatility in ranks now. Ratings and ranks have been adjusted retroactively. Main changes: We were using fixed windows to update ranks, considering up to 15 games at a time to update your rank. When we got to the 16th game, we’d “commit” your rank and start a new block to update your ranks. We now use a sliding window, so we look at your most recent 15 games (up to 90 days), and use that to update your rank, this…