In the final of 2011 World Championships, he beat Serik Sapiyev from Kazakhstan after 3 rounds with 16–10 final score (5:2, 3:2, 8:6 per round). Prior to the final, beating his opponents from Denmark, Cuba, France and Russia respectively, he qualified for 2012 Summer Olympics by reaching the quarter finals. Along with his contribution, Ukraine Boxing National Team have topped the 2011 World Amateur Boxing Championship overall medal table with 4 gold and 1 silver medals.
Additionally, climbing up 20 ladders, Shelestyuk captured the top spot at AIBA individual rankings with 1700 points, as of 31 October 2011, in front of Welsh Freddie Evans and Indian Vikas Krishan.
Getting the Bronze medal in Olympic Games in London 2012 he moved to Los Angeles and sighned contract with promotion company and turns to Pro. Now training at famous boxing gym "Wild Card boxing club" with trainer Freddie Roach.