I don't quite understand. My (quite old) highest score for the MA is about 440k for my class and when I look at the permanent ranking list for my class the lowest shown score is well below mine but my name does not show in ranking list. It also says "no placement" (I translate from my language so the English name may differ but I hope you still know what I mean)
It is not the ranking list for the trial of the week.
Is this ranking list wiped after a while?