 Djhone akaisa rekodhi itsva yenyika mumakwikwi emumunda mumakwikwi emamita mazana mana nemasekonzi 45,85 paFrench Athletics Championships ya2010, achitora zvikamu gumi nezvishanu kubva muzana yechipiri kubva pamakore gumi nemasere ekuberekwa kwaStéphane Diagana. Muna 2011, akahwina 400 m mune itsva yenyika indoor rekodhi nguva ye45.54 masekondi uye 4 × 400 m relay menduru dzegoridhe pa2011 European Indoor Championships. 