The fundamentals of the system were explained in Mike's Billiards Digest article, but it is basically like the ELO system in chess. If you perform better than what your rating predicts in a particular match, your rating will go up, and if you perform worse your rating will go down. If Johnny Archer beats me by only 11-7 in a tournament, his rating goes down because he should beat me by about 11-3 (according to our ratings).I am all for TRANSPARENCY this is not transparent???
Disclose what a TOP PLAYER must do to be #1, #2, #3, #4, #5???
old data is used to formulate this system is CRAZY. Archer 10 years ago is not Archer today!!!
KD
In general, you have to win most of your games against top players to be rated higher than they are, but you could get there by always beating shortstops 9-2. The way most competition works the top players have to play the top players quite a bit.
As has been explained, old data is used but it has less weight than recent data. In particular, games 10 years ago are only 10% as important as games played yesterday.
You could reproduce the system yourself or something very close to it from what has already been said and if you had the match data you could calculate the ratings yourself. I think that's pretty transparent.