Rating system on Cyberoro

8-dan is currently the highest grade, but they have ELO ratings.
I believe that 90% of 8-dan players with the rating 34000 or higher are professionals.
There are also pro ranks, but even some professional players are not able to reach 34000.
For example, here is the list of some Japanese pros with their ratings and recent scores:

daxiang 1p      34534  2-0
taiwansiro 8p  34507  9-4
kisihikae 5p    33665  47-36
wakatekisi 5p 33402  59-47
kronos 8p       33200 1-0