Even pros have trouble to stay 8d
For those who don't know how Cyberoro works, 8d is the highest rank you can achieve. It corresponds to 33000 rating points, a very few achieve 34000 RP (which should translate to 9d).
Tangchina is a 5p pro player and even though he is professional he "only" have 33090 RP, corresponding to 97 wins and 115 losses. His opponent tiansangfh also from China has 33140 RP with 137 wins and 47 losses.
The following game is not very representative of the play style of Cyberoro. Usually they engage big scale fights, especially kyu and low dan players, stronger players are less reckless but I feel like the audience was a bit bored. Anyway as you can see Cyberoro is a good place to play plenty strong players, they also have an English client, the only downside is that betting is disabled with the English client.