Career
Buga came to Germany in 1996 and received a German passport in 2002. He participated in the 2007 World Amateur Boxing Championships and was one of only two German quarterfinalists that qualified directly for the Olympics. He upset local hero Shawn Estrada but lost to the surprise runner-up Alfonso Blanco (boxer).
World amateur championships results
Defeated Tobias Webb (Wales) RSCO 3
Defeated Jean-Mickaël Raymond (France) 19-8
Defeated Shawn Estrada (United States) 11-11
Lost to Alfonso Blanco (Venezuela) 9-18
Olympic games results
Lost to Carlos Góngora (Ecuador) 7-14.