YOU SAID:

I am the most athletic persone in the whole entire world

INTO JAPANESE

私は全世界で最もアスレチックな人物です

BACK INTO ENGLISH

I am the most athletic person in the world

INTO JAPANESE

私は世界で最も運動選手です

BACK INTO ENGLISH

I am the most athlete in the world

INTO JAPANESE

私は世界で最もアスリートです

BACK INTO ENGLISH

I am the most athlete in the world