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Ranking system again!

 
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Gaius_Marius
Fortgeschrittener


Joined: 04 May 2003
Posts: 199

PostPosted: 01.11.2003 22:54    Post subject: Ranking system again! Reply with quote

I thought I understood this system but I really don't. OK Agresor and I played 8 games 6 of which I won in UL. 4 of those in a row. My rating never goes above 1500, while Agresor's rank went up like 80 points for beating me ONCE. He's been up as high as 1532! I can't even get a breath above 1500. I just beat Apollo and I'm waiting to see if it will go above 1500. Exorcist is the same thing when i played him he gets a ton of points for beating me but when I beat someone higher ranked I get nothing. With this current system you should throw out the people that don't even play UL. ex: Lion, masteray, etc. Something has to be wrong. There seems to be now no incentive at all now for playing people rated below me because I get nothing at all no points. So tell me what I would have to do to acheive a rating above 1600? I mean come one do I have to win like 20 games in a row against higher ranked people?

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Gaius_Marius
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Joined: 04 May 2003
Posts: 199

PostPosted: 01.11.2003 23:36    Post subject: make that 2 more wins vs. Agresor Reply with quote

Ok now I have won two more against Agresor and still its at 1500!

Strange phenom!
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PostPosted: 02.11.2003 10:20    Post subject: kleiers Reply with quote

Its Kleiers.... some say the best ranking system.
I have the same problem, but when you have played many games like yourself, you go up very slowly. Its just the way it is!

When i started at WSC, i was very bad. Then after 1 year i started playing better. I personally think that you have to judge people at the moment they are playing. Kleiers isnt the right system for that. But on the other hand, it has advantages too.

Im sure you understand the system, but i know its frustrating gaining few or no points for wins.

People need to play more UL.... you know i dont

W.
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spion
Gravon Administrator


Joined: 27 Feb 2002
Posts: 750
Location: Koblenz

PostPosted: 03.11.2003 08:40    Post subject: Reply with quote

Hi

i am currently talking to H.Kleier about the rating system. I asked him to explain it himself.

And i suggested to reduce the weight of older games. Maybe this will solve your current problems, -.

Best regards
spion
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spion
Gravon Administrator


Joined: 27 Feb 2002
Posts: 750
Location: Koblenz

PostPosted: 04.11.2003 07:49    Post subject: Reply with quote

Hi!

i just have taken a closer look into the UL rating/ranking:

Agresor now has less than 1500 points. He has played 24 games now, so his rating should become accurate now.

Apollo only played 6 games so its not unusual that he jumps up and down. Until he completes at least 20 games his rating is just an idea of his playing strength and his rating will vary very much until he has completed more games. Its a known problem of all rating systems which try to estimate playing strengths. Thats the reason why no one gets a _ranking_ until he has completed 20 games.

So dont mind if Apollo goes up and down just for beating you or loosing.

The same problem was with Agresor. You have completed more than 300 games so the system can estimate your playing strenght very good (which means you will gain/loose few "points" by playing single games now), but Agresor just played 24 games, so his rating is still not very exactly.

One of the most important things to understand is that the rating value does not mean "points" but "strength".

Best regards
spion
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Gaius_Marius
Fortgeschrittener


Joined: 04 May 2003
Posts: 199

PostPosted: 04.11.2003 17:36    Post subject: Thank you spion Reply with quote

Thanks for the explanation I get it now. So since i've played a ton of games that means that my playing strength will remain relatively stable. So when I do beat a top ranked player I can bring his rating down to my own. That's how I understand it. Cool thx again


Marius
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Hermann Kleier
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PostPosted: 05.11.2003 23:19    Post subject: Rating Reply with quote

Our Spion did a good job in explaing the system. After having a look at the game results I can explain it more detailed.

Regards, Hermann Kleier
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PostPosted: 08.11.2003 01:07    Post subject: Re: make that 2 more wins vs. Agresor Reply with quote

Gaius_Marius wrote:
Ok now I have won two more against Agresor and still its at 1500!

Strange phenom!


A simplified model to understand the rating is the score balance model. It is closely related to the Elo-rating. Though it is not the whole truth, it is quite evident. Let me give an example. I listed all UL-games of Agresor:

wellington 2003-10-27 1645.6 0.217 0
The_Freak 2003-08-04 1633.8 0.230 1
The_Exorcist 2003-10-26 1520.4 0.371 1
Gaius_Marius 2003-07-30 1500.1 0.399 1
Gaius_Marius 2003-07-30 1500.1 0.399 0
Gaius_Marius 2003-08-04 1500.1 0.399 0
Gaius_Marius 2003-08-04 1500.1 0.399 1
Gaius_Marius 2003-08-04 1500.1 0.399 0
Gaius_Marius 2003-10-30 1500.1 0.399 0
Gaius_Marius 2003-10-30 1500.1 0.399 0
Gaius_Marius 2003-11-01 1500.1 0.399 0
Gaius_Marius 2003-11-01 1500.1 0.399 0
Gaius_Marius 2003-11-01 1500.1 0.399 0
Gaius_Marius 2003-11-01 1500.1 0.399 0
Gaius_Marius 2003-11-01 1500.1 0.399 0
Gaius_Marius 2003-11-01 1500.1 0.399 0
Gaius_Marius 2003-11-01 1500.1 0.399 1
Gaius_Marius 2003-11-01 1500.1 0.399 0
Gaius_Marius 2003-11-01 1500.1 0.399 0
Gaius_Marius 2003-11-01 1500.1 0.399 1
Grizzlybear 2003-10-30 1398.2 0.544 1
Grizzlybear 2003-10-30 1398.2 0.544 1
Grizzlybear 2003-10-30 1398.2 0.544 1
edbomb 2003-08-04 1229.6 0.764 1

The 1st column is the opponent, the 2nd the date of the game, the 3rd is the rating of the opponent, the 4th is the expected result and the 5th is the observed result (the outcome of the game). E.g. the last column means that Agresor played against edbomb on the 4th of August. edbomb has 19.6 rating points. Therefore (due to the rating difference) Agresor should win 76.4% of the games against edbomb. He won the match.

If you add the numbers of the 4th column, you see that Agresor should have made 9.99 wins. He actually won 10. Therefore his scores are in a balance. As already mentioned, this is not the whole truth, but it is quite a good approximation. This condition is true for all players.

Note that there is a score flow between Gaius_Marius and Agresor, because Agresor has only made 4 wins in 17 games. But due to the rating difference he should have made 6.78 wins. Therefore Gaius_Marius gets a score flow of 2.78 points from Agresor, which Agresor gets from his other opponents. Therefore Gaius_Marius is lucky that Agresor is quite successful against the others.

Hermann
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