11134 Players currently online!
Man vs. Machine - good luck!
Turn-based games at any time!
Vote for the best move to win!
Do you have what it takes?
Sharpen your tactical vision!
Get advice and game insights!
Learn from top players & pros!
View millions of master games!
Your virtual chess coach!
Perfect your opening moves!
Test your skills vs. computer!
Find the right private coach!
Can you solve it each day?
Bring it all together!
Beginners, start here!
Make friends & play team games!
News from the world of chess!
Search all Chess.com members!
Find local clubs & events!
Who's the best of your friends?
Read what members are saying!
Are unrated games included in the calculation of Glicko RD?
What causes an RD to rise from 127 to 134? Does playing unrated games against lower rated players cause the RD to rise?
Interesting question. I'd like to know the answer too. Of course there's nothing to lose with a rising RD.
Your RD is supposed to be a measure of how well you rating reflects your true chess playing ability, or how close it is to being accurate. So if you play a lot of people with high RD's then yours could rise because winning or losing to someone else whose rating may be far from accurate does not prove anything. Also, RD can rise over time with inactivity.
There are better explanations out there I am sure.
I believe unrated are just that...un(not)rated. They don't count for or against your RD at all.
Vishy Anand claims to be able to see 70 moves ahead...
by samky01 a few minutes ago
by Akatsuki64 a few minutes ago
Ponziani: Impractical in non-computer Correspondence Chess?
by computo200 a few minutes ago
Hou Yifan preparing to replace Judit Polgar as Women's #1?
by trysts 2 minutes ago
Have you ever been imitated by a Chess.com member?
by AbeCrabowski 3 minutes ago
Carlson vs Capablanca
by Chessattackman 4 minutes ago
Why did you choose the username you have?
by BlackLeopard-1 7 minutes ago
What do you feel about players that do perpetual checks when they are losing?
by SmyslovFan 9 minutes ago
PHOTOS and VIDEOS
by BryPin 9 minutes ago
i have not found a chess teacher
by returnofxpchesser 12 minutes ago
Why Join | Chess Topics |
Help & Support |
© 2014 Chess.com
• Chess - English
We are working hard to make Chess.com available in over 70 languages. Check back over the year as we develop the technology to add more, and we will try our best to notify you when your language is ready for translating!