Can Some One Plz explain why there is/need to be such a Vast Difference in our Initial  Increament/Decreament in Rating Points ( after our Initial 1200 Rating ) as compared with the later ones after we hv played a certain number of games ?

( hundreds of points ,initially compared with 1-30 or so points ,later )

I hv read abt the Rating Deviation Factor( RD ),etc ( Glicko Rating System Article ) but I don't quite get the Co-relation between them.

I've seen some people Win juz a few games consecutively,after their initial 1200 Score ,then their Rating will shoot up to maybe 2000 or so and those that keep loosing will end up with maybe < 1000  ..

and then their Rating will stay around there if they don't play a lot of games after that or if they only play with Opponents of almost similiar Ratings .

Will there be any lasting effect on his Rating if the Player is actually a  Not So Good Player but he happened to play  against a few High Rated Players who weren't playing well at that time n' he Won or Vice Versa ?

Juz Wondering ,

Tnx.

When you first start playing the rating system has no information on how good you are (reflected by a high RD). It adjusts you rating by large ammounts to account for that lack of knowledge. If you're a master, it wants to get your rating up to where it should be quickly. Once it gets enough information about how good you are (reflected by a lower RD), it slows down how fast your rating is changing, so it remains reasonably stable.

Now, if you get a high rating, and don't play a lot of games after that, your RD will go back up. Then when you start playing again, it will change rapidly again.

The rating doesn't really have a good "memory." If you get lucky against a few high rated players, eventually the effect of that will go away.

So the Aim of the Initial large Rating Adjustment is to get a Good or Master Player's Rating up as fast as possible n' similarly,a Poor Player's  or Beginner's Rating down asap too .

Yeah,if a Player gets lucky or unlucky against a few High or Low Rated Players,s/he will hv to play lots more games to annul the effect.

Will there be any long -term effect if s/he limits her/his Opponent's to within a Certain Rating Category ? .. I guess not,coz they wld all hv their own RD's too.

Tnx ironic_begar !

It is the rule to follow!

@Shadowknight: That scenario shouldn't happen with the Glicko system.  The RD should go up if a player is inactive and then the rating adjustment will be more rapid.