| Semifinal - 27.08.04 | | Atagun Yalcinkaya | Tur | Sergey Kazakov | Rus | 26-20 | | Yan Bhartelemy Varela | Cub | Shiming Zou | Chn | 29-17 |
| Quarterfinal - 24.08.04 | | Sergey Kazakov | Rus | Joseph Jermia | Nam | 18-11 | | Atagun Yalcinkaya | Tur | Alfonso Pinto | Ita | 33-24 | | Shiming Zou | Chn | Aleksan Nalbandyan | Arm | 20-12 | | Yan Bhartelemy Varela | Cub | Moo Won Hong | Kor | 30-11 |
| Round of 16 - 21.08.04 | | Joseph Jermia | Nam | Peter Wakefield | Aus | 29-20 | | Sergey Kazakov | Rus | Raul Castaneda | Mex | 41-16 | | Alfonso Pinto | Ita | Carlos Jose Tamara Paternina | Col | 49-35 | | Atagun Yalcinkaya | Tur | Jeyhun Abiyev | Aze | 23-20 | | Shiming Zou | Chn | Endalkachew Kebede | Eth | 31-8 | | Aleksan Nalbandyan | Arm | Najah Ali | Irq | 24-11 | | Moo Won Hong | Kor | Harry Tanamor | Phi | 42-25 | | Yan Bhartelemy Varela | Cub | Suban Pannon | Tha | 23-14 |
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| Round of 32 - 18.08.04 | | Sergey Kazakov | Rus | Patricio Calero | Ecu | 20-8 | | Carlos Jose Tamara Paternina | Col | Redouane Bouchtouk | Mor | 48-25 | | Alfonso Pinto | Ita | Effiong Okon | Nig | TKO round 3 | | Atagun Yalcinkaya | Tur | Jolly Katongole | Uga | 22-7 | | Jeyhun Abiyev | Aze | Pal Bedak | Hun | 23-8 | | Shiming Zou | Chn | Rau Shee Warren | USA | 22-9 | | Endalkachew Kebede | Eth | Toshiyuki Igarashi | Jpn | 26-21 | | Najah Ali | Irq | Hyok Ju Kwak | PRK | 21-7 | | Aleksan Nalbandyan | Arm | Redouane Asloum | Fra | 27-20 | | Moo Won Hong | Kor | Lalaina Rabenarivo | Mad | TKO round 3 | | Harry Tanamor | Phi | Sherali Dostiev | Taj | 17-12 | | Yan Bhartelemy Varela | Cub | Miguel Angel Miranda Guerra | Ven | TKO round 3 | | Suban Pannon | Tha | Salim Salimov | Bgr | 26-14 |
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