User blog comment:Pualover/Overlord Power Level/@comment-1846146-20151004122301/@comment-27010445-20151019213122

It's wrong because "World Champion" is a title for Player who enter and win the tournament. Ulbert could be "Strongest Magic Caster" but not "World Champion" because he did not entered the tournament and won, like Touch Me.

For example, the title "Guild Master". Ainz is weaker than Ulbert and Touch Me yet he is the "Guild Master".