alosso: "tiering up by levelling up",
I don't think it's levels because pro-tour pro is at 50 if haven't done it by then.
Could be something to do with quality of opponent that he has beaten.
I had something happen to me where i went from TL to C and only had 69 ranked rounds played after i hit TL.
I play mostly coin games with some Flash play rounds here or there.
I remember years ago i went from Master to TM and TM to Legend after winning Ready gos.but that's not it because he said his average is still 150.
has to be some kind of competition algorithm.