Glikco RD

• 6 years ago · Quote · #1

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

• 6 years ago · Quote · #2
go to articles and search for "rating" :) there is a good article on the topic of ratings and what glicko RD is.
• 6 years ago · Quote · #3

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.

• 6 years ago · Quote · #4
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.

• 6 years ago · Quote · #5
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

• 5 years ago · Quote · #6
wow
• 5 years ago · Quote · #7

How does one find out their RD?

• 5 years ago · Quote · #8
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).