What rating systems are there?

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RakeshMahanti

Besides elo and glicko

Minecraft06HP
No idea
BadPlayerEasyToBeat
What’s Glicko? Based on context, I can tell it’s another way to see how good someone is, but is there like a formula to convert elo to Glicko and vice versa? Also, does anyone actually use this?
ChessMasteryOfficial

MMR, TrueSkill, USCF Rating System, DWZ, GXE, K-Factor,...

basketstorm

You don't "convert" Elo to Glicko. Glicko USES Elo. Glicko is same as Elo, just with certain rating update rules. Here for active players it all comes down to K-factor = 16.

BadPlayerEasyToBeat
#5 me kunfuso
basketstorm
BadPlayerEasyToBeat wrote:
#5 me kunfuso

Elo meant to represent win probability. If you win 66% games against someone, you are 115 Elo higher than him. Etc. There's a direct conversion of win/loss statistic to Elo difference and back from Elo difference to win/loss prediction. All chess players in all systems are rated in Elo. Including FIDE, USCF and even chess.com and lichess. There are certain mistakes in online chess ratings and I have a separate topic about that, feel free to read my recent posts there.

Now, what is Glicko? Glicko is a system that defines how to adjust Elo of players after each game - how much you lose or gain after each game depending on your rating, opponent's rating and rating deviation (higher for new players or for players who were inactive for a while).