This is my site! I just built it for shits and giggles. I noticed that this forum was sending some traffic. Clearly you guys appreciated it so I rebuilt it making it nicer for you.
The site uses the Elo rating algorithm. I've changed the settings to the algorythm to make the ratings a little tighter and more accurate.
The Elo rating algorithm is what is used in cheese to rank players. It allows new players to be added at any time. If a new player wins against top players the new player's rank increase very quickly so the new player is ranked properly.
It is still at
http://playboy-fm.herokuapp.com/
If you guys have any ideas or if you see any bugs let me know. If you use it a lot and I have time, I'll return and find ways to make it even better.