<prompt> Bhala ukuqhubeka kwalesi sigaba - Ngo-2012, uKoptelov waqhudelana ku-2012 FINA World Swimming Championships 25 m e-Istanbul, eTurkey okwenza kwaba kuma-semi-finals kwabesilisa 50 m butterfly. Ku-2013 Summer Universiade eKazan, Kopelov kwaba yilungu Team Russian ukuthi iwine igolide kwabesilisa 4 × 100 m medley nge uVladimir Morozov, Kiril Strelnikov futhi Andrey Grechin futhi indondo yethusi 100 m butterfly. Ngo-2014, uKoptelov waqeda indawo yesishiyagalombili emqhudelwaneni wamamitha angama-200 we-butterfly eMqhudelwaneni WaseYurophu ka-2014  <response>: . futhi. 