beating higher rated players gives the same points increase as lower rated players? • page 1/1 • General Chess Discussion • lichess.org

In the last three games I've won against a player 9 points better than me, +5
then one 17 points better than me +7 (two more than the last)
then one 150 points better +8 (one point more than the last)

it seems odd that the
change between 9 and 17 garners an increase of 2 rating points,
but a
change between 17 and 150, only 1.

If I beat someone rated 2800 will I get the same for beating a 2200?

Should I just limit my games to players 20 points higher than me, as the rating increase I'd get from playing those is proportionally much higher?

confused.

In the last three games I've won against a player 9 points better than me, +5 then one 17 points better than me +7 (two more than the last) then one 150 points better +8 (one point more than the last) it seems odd that the change between 9 and 17 garners an increase of 2 rating points, but a change between 17 and 150, only 1. If I beat someone rated 2800 will I get the same for beating a 2200? Should I just limit my games to players 20 points higher than me, as the rating increase I'd get from playing those is proportionally much higher? confused.

orangetriangle

#2

https://lichess.org/faq#ratings

wewillalldie

#3

That link does not seem consistent with a rating win of 17 giving 7 points and a win over 150 only giving 8. Could you explain in this case how this has come about?

orangetriangle

#4

I think what's happening is that the 150 win was treated as an outlier and therefore contributed only a small bit more than the 17 win.

GSP0113 edited

#5

Here's what might be happening. The Glicko-2 system takes into account the reliability of your opponent's rating in determining how many points you win or lose at the end of your game. All other things being equal, if you beat a player with a rating that the system has high confidence in, you will gain more points than if you beat a player with a rating that the system has low confidence in.

The system bases its ratings confidence on several factors, including how many games the player has played and how recently the player has been playing. (In other words, if a player stops playing for awhile, the system is less confident that his rating is accurate.)

In your case, it may be that the +150-point player you beat had not been playing much recently and Glicko-2, therefore, awarded you fewer points than it would have otherwise.

Here's what might be happening. The Glicko-2 system takes into account the reliability of your opponent's rating in determining how many points you win or lose at the end of your game. All other things being equal, if you beat a player with a rating that the system has high confidence in, you will gain more points than if you beat a player with a rating that the system has low confidence in. The system bases its ratings confidence on several factors, including how many games the player has played and how recently the player has been playing. (In other words, if a player stops playing for awhile, the system is less confident that his rating is accurate.) In your case, it may be that the +150-point player you beat had not been playing much recently and Glicko-2, therefore, awarded you fewer points than it would have otherwise.

CM piscatorox

#6

remember about rounding as well, as ratings are fractional. I think that if you go from 2000.1 to 2005.9 this will count as '+5', and likewise 2000.9 to 2007.1 this counts as '+7'

Certainly you get more from beating higher rated opponents.

remember about rounding as well, as ratings are fractional. I think that if you go from 2000.1 to 2005.9 this will count as '+5', and likewise 2000.9 to 2007.1 this counts as '+7' Certainly you get more from beating higher rated opponents.