| Semifinal - 27.08.04 | | Yudel Johnson Cedeno | Cub | Boris Georgiev | Bgr | 13-9 | | Manus Boonjumnong | Tha | Ionut Gheorghe | Rom | 30-9 |
| Quarterfinal - 22.08.04 | | Yudel Johnson Cedeno | Cub | Dilshod Mahmudov | Uzb | 32-28 | | Boris Georgiev | Bgr | Nurzhan Karimzhanov | Kaz | 20-18 | | Manus Boonjumnong | Tha | Willy Blain | Fra | 20-8 | | Ionut Gheorghe | Rom | Michele di Rocco | Ita | 29-18 |
| Round of 16 - 19.08.04 | | Yudel Johnson Cedeno | Cub | Davis Mwale | Zam | TKO round 3 | | Dilshod Mahmudov | Uzb | Alessandro Matos | Bra | 26-16 | | Boris Georgiev | Bgr | Rock Allen | USA | 30-10 | | Nurzhan Karimzhanov | Kaz | Hicham Nafil | Mor | 33-13 | | Manus Boonjumnong | Tha | Romeo Brin | Phi | 29-15 | | Willy Blain | Fra | Alexander Maletin | Rus | 28-20 | | Ionut Gheorghe | Rom | Mustafa Karagollu | Tur | 28-19 | | Michele di Rocco | Ita | Anoushirvan Nourian | Aus | 33-25 |
|
| Round of 32 - 15.08.04 | | Boris Georgiev | Bgr | Nasserredine Fillali | Alg | TKO round 2 | | Hicham Nafil | Mor | Isidro Mosquea | Dom | 42-40 | | Nurzhan Karimzhanov | Kaz | Juan de Dios Navarro Ramirez | Mex | 48-31 | | Manus Boonjumnong | Tha | Spyridon Ioannidis | Gre | 28-16 | | Romeo Brin | Phi | Patrick Bogere | Swe | 43-35 | | Willy Blain | Fra | Mohamed Ali Sassi | Tun | 36-14 | | Alexander Maletin | Rus | Saleh Khoulef | Egy | TKO round 3 | | Ionut Gheorghe | Rom | Faisal Karim | Pak | 26-11 | | Mustafa Karagollu | Tur | Vijender | Ind | 25-20 | | Michele di Rocco | Ita | Patriz Adelis Lopez Rojas | Ven | 37-30 | | Anoushirvan Nourian | Aus | Kitson Julie | Sey | 51-22 |
|
