He became a five - time Ukrainian National champion , won bronze medals at the Junior World Championships in 2006 and at the World Championships in 2009 .
The 26 - year - old Ukrainian Ivan Golub amassed an astonishing record of 270 - 32 during his amateur career .
Ivan Golub became a five - time Ukrainian National champion , won bronze medals at the Junior World Championships in 2006 and at the World Championships in 2009 .
The 26 - year - old Ukrainian Ivan Golub amassed an astonishing record of 270 - 32 during his amateur career .