Originally posted by Serendipity
Ok but what about the player who beats someone whose won one game and got a high rating? Is that not fair that their rating shoots up after beating someone who isn't really ie a 1800 rated player.
If someone's played less than 5 games, then their rating is regarded as being 1200. So a player who beats this person will not gain any more than beating an ordinary 1200 rated person. In fact, because the rating is provisional, the winner will only receive half the points he/she would normally gain from winning.
Let me give an example:-
Player A, who has recently joined the site, has completed 3 games - beating a 1400 opponent, a 1500, and a 1600. His provisional rating will be the average of 1400 + 400, 1500 + 400, 1600 + 400 = 1900.
Player B, who has played more than 20 rated games, is rated at 1650.
Player B challenges Player A and beats him.
Now Player B might be expecting to gain a great deal from beating a 1900 opponent, someone rated 250 points above him. But for rating purposes, Player A is regarded as being 1200, and a 1650 player should be able to beat a 1200 player in practically every game. Therefore he will gain practically nothing from the win. Player A's provisional rating will fall considerably, but Player B's rating will stay the same.
So my advice for anyone rated above 1200, is don’t expect to gain much, or anything at all, from playing someone who’s not yet completed 5 games.