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Glicko RD

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smb1959

Well I guess it is almost moot if you are improving but I get the point.  Thanks.

Pre_VizsIa

Well, the point is, if you are winning games your rating will not change, which would be very discouraging.

erik

sorry about zborg - very rude of him. 

smb1959

erik,

No offense was taken.  I was being lighthearted in my response.  Unfortunately I realized later that zborg might be a young person.  Actually it was a bad misjudgment on my part.

Let's call it even because this thread has been very helpful to me, Jamie, and I hope others.

Scott

zborg

I suspect I'm older than @smb.  Yawn.  But he's still competing for the maturity prize.

You can find all your answers at the following--http://www.glicko.net/

Just click on "USCF" and "Glicko" to your heart's desire, as per @NimzoRoy above.

And here's @smb being "lighthearted" --

"If I knew you personally I would show you how men work out disagreements if one of them is not a gentleman." (Direct Quote from Post # 16).

Neat trick, don't you think?  Smile

solskytz
[COMMENT DELETED]
smb1959

Please Stop

zborg

PLEASE fix the multiple typos in your (About Me) "Occupation," @smb.

People might get the wrong impression of you.  Smile

solskytz

'

smb1959

Good bye

solskytz

'

MJ4H

 o The interval formed by Current rating +/- RD contains your true rating

   with probability of about 0.67.

 

 o The interval formed by Current rating +/- 2 * RD contains your true rating

   with probability of about 0.95.

 

 o The interval formed by Current rating +/- 3 * RD contains your true rating

   with probability of about 0.997.

smb1959

So the RD does represent a standard bell shaped curve.  The first RD is between -1 and +1 iteration, etc.  Good to know.  Thanks MJ4H!

zborg

[IMMATURE COMMENT DELETED BY MODERATOR]

smb1959

You have now been deleted from this thread. Grow up man!

smb1959

I need a reality check Jamie.  Was it me or did those dudes have an axe to grind?  I have never met them.  I did open up a can of worms by becoming angry in my first reply which was a mistake.  I have a feeling though that with characters like those no matter what I said I would have been attacked.  

The more important part is that I understand RD better and also how to block people on a blog!  Did you find this tread useful?

Spielkalb

Reality check even if I'm not Jamie Wink: No worries, it wasn't you trolling around but according to my experience on all internet forums there are special people always trying to prick around, don't know why. 

On topic: I found this thread useful for my understanding the RD. A little thought about the minimum RD: If the RD reached zero, no further changes in the rating would be possible, wouldn't it? Therefore, you have to set a minimal RD somehow, am I right?

MJ4H

RD = 0 would be the same as Elo.  In fact, Glickman says that Elo is basically just a special case of Glicko where all RDs = 0.

Spielkalb

Ah, ok, thanks! 

smb1959

Thank you Spielkalb, this is my first foray into the mostly positive use of the forum platform. One of my jobs is being a professional counselor so I shouldn't have been surprised about the outliers.

MJ4, as a newcomer, is Elo a rating system that indicates performance in a different way than Glicko?  For example, I believe the NFL and MLB have adopted the Elo formula for pairs like quarterback/receiver or pitcher/batter ratings.  It would seem intuitively somewhat different than Glicko which is a range of "sporting" relationship between the same "positions"--chess player against chess player.  

I guess there comes a point of counting angles on the head of a pin so sorry for asking questions which are far afield of the original topic.