Glikco RD

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29th November 2007, 08:48am
#1
by AlvinMcMath
chatsworth, ga United States
Member Since: Nov 2007
Member Points: 27

what is it? i'm not starting a forum discussion, but can't find a place to post a simple question.

29th November 2007, 09:02am
#2
by erik
Mountain View, CA United States
Member Since: May 2007
Member Points: 7113
go to articles and search for "rating" :) there is a good article on the topic of ratings and what glicko RD is.
29th November 2007, 09:03am
#3
by likesforests
United States
Member Since: May 2007
Member Points: 3336

Ratings deviation. If you know statistics, it's like the standard deviation.

 

Your rating is 1532 and your RD is 113. That means with 95% confidence your true strength is between 1306 (rating - 2 x RD) and 1758 (rating + 2 x RD).

 

My rating is 1770 and my RD is 188. That means with 95% confidence my true strength is between 1394 (rating - 2 x RD) and 2146 (rating + 2 x RD).



The more often you play, the lower you RD becomes.


30th November 2007, 09:34am
#4
by AlvinMcMath
chatsworth, ga United States
Member Since: Nov 2007
Member Points: 27
likesforests wrote:

Ratings deviation. If you know statistics, it's like the standard deviation.

 

Your rating is 1532 and your RD is 113. That means with 95% confidence your true strength is between 1306 (rating - 2 x RD) and 1758 (rating + 2 x RD).

 

My rating is 1770 and my RD is 188. That means with 95% confidence my true strength is between 1394 (rating - 2 x RD) and 2146 (rating + 2 x RD).



The more often you play, the lower you RD becomes.


thank u- as a medical lab tech i am familiar w/SD, & u'r answer makes sense, AND is more illuminating than the article mentioned by someone else. luv trees? u can't see my house on Google maps because of the pecan trees.

30th November 2007, 09:48am
#5
by AlvinMcMath
chatsworth, ga United States
Member Since: Nov 2007
Member Points: 27
erik wrote: go to articles and search for "rating" :) there is a good article on the topic of ratings and what glicko RD is.

thank u. kinda deep for an retired math dude, but the essense is explained well

7th January 2008, 02:47pm
#6
by Joe14
El Mejor Pueblo Puerto Rico
Member Since: Nov 2007
Member Points: 1546
wow
2nd February 2008, 09:02pm
#7
by leggy
Pasadena, Newfoundland Canada
Member Since: Jan 2008
Member Points: 87

How does one find out their RD?


2nd February 2008, 09:31pm
#8
by likesforests
United States
Member Since: May 2007
Member Points: 3336
leggy, I think now only paying members can see their RD. Click on "My Home" (top right) | "Online Chess" (top right) | "See Full Stats Page" (bottom right).
 

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