Even I had to check stats
He was in top250 few years ago.
Now he is 23,5 y.o.
His last matches were in November-04.
Vlasov had victories over Stepanek(!), Kohlschreiber, Gabashvili, Vico, Korolev (15 y.o.), Tuksar, Kubot, Meffert, Ventura, Tabara etc.
So he can play at the level of top200 I think.