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Creating new game - how to avoid opponents with provisional rating?

#11

#10 There are at least two major differences between Lichess' rating system and a full Glicko-2 implementation:

  1. There is no "rating period" - games are rated sequentially rather than simultaneously, and RD seldom decreases (because volatility per rating period is very high - there are hacks in Lichess' code to prevent volatility from increasing, but it seldom decreases)
  2. RDs do not age over time

A full Glicko-2 (or Glicko-Boost such as what online-go.com has) implementation would be state-of-the-art - the latest publicly available research has been done at http://glicko.net/glicko.html

Playing against (?) players who have RD=350 shouldn't strongly impact any player's rating, unless (as caused by both 1 and 2 above) all players' RDs are inflated, which they are and which is a major problem in terms of having accurate ratings and RDs; no amount of parameter tuning (of which Lichess has done a great deal) can improve their accuracy.

#10 There are at least two major differences between Lichess' rating system and a full Glicko-2 implementation: 1. There is no "rating period" - games are rated sequentially rather than simultaneously, and RD seldom decreases (because volatility per rating period is very high - there are hacks in Lichess' code to prevent volatility from increasing, but it seldom decreases) 2. RDs do not age over time A full Glicko-2 (or Glicko-Boost such as what online-go.com has) implementation would be state-of-the-art - the latest publicly available research has been done at http://glicko.net/glicko.html Playing against (?) players who have RD=350 shouldn't strongly impact any player's rating, unless (as caused by both 1 and 2 above) all players' RDs are inflated, which they are and which is a major problem in terms of having accurate ratings and RDs; no amount of parameter tuning (of which Lichess has done a great deal) can improve their accuracy.

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