Congratulations WGT!
Another ill-conceived idea rushed into existence? Your capacity for doing this is very impressive.
Just when the ridiculous injustice of the level system was fixed by making it so fast to rise in levels they become irrelevant...
Am I right in concluding the system is the best X rounds since a player last got promoted?
That will, as other people have pointed out, mean everyone will eventually get promoted to a tier at which they can't play.
Has the Peter Principle arrived? I wonder if the management at WGT are familiar with it. Prime examples of it I perhaps? Or is it the Dilbert Principle at work in WGT's offices? (Is this the brain-child of someone who was made manager to limit the damage they can cause?)
If, on the other hand, it's the best X% of rounds since a player last got promoted then that would be ok if X isn't too low. The best 50% would be good - a real improvement! I would applaud this change if that was the case.
Oh, what is the chance you've done the right thing here?
I really don't like being cynical but I would kick myself for being so stupid as to assume you've made this best X% rather than best X.
Please tell us it's %.
It's a forlorn hope but I'm clinging to it.
PS: If you do want to fix sand-bagging you have to have separate scores/tiers for different types of competition (hi-stakes/lo-stakes credit tournaments/MPs and the rest).