That's because it's Xbox. Almost no serious players are playing on Xbox, because PS4 is the tournament standard.
Most of the top 100 on PSN are tournament/online players you'd recognize -- Sonic, King, Blind Ducky, Bdon, Etc.
P.S. Booo to
@Akromaniac27 for knocking me just out of the Top 100 yesterday.. I'll be back