I just stumped the Akinator!First,I was thinking of Chupacabras,Jason Voorhees,Gay Akinator(he said Akinator,but that's ok),then I was thinking of Drekavac(a mithological being from Drvar in Bosnia)and he said that I was thinking of Elephants.
I've stumped him with some relatively obscure hockey players. I imagine it would work for other less well known (ie. non-superstar) athletes from other sports.