1.Mayor's Cup - Manila, Philippines - November 23-29 1989
Preliminaries
| 1989-11-22 | 48kg | Liu Hsin Hung | TPE | Roel Dignos | PHI | 5:0 |
| 1989-11-22 | 51kg | Hsu Lung Pin | TPE | Paul Wills | AUS | 3:2 |
| 1989-11-22 | 51kg | Chatchai Sasakul | THA | Rogelio Plomeda | PHI | 3:2 |
| 1989-11-22 | 51kg | Jaime Desiacto | PHI | Hamdani Tomagola | INA | 3:2 |
| 1989-11-22 | 54kg | Roberto Jalnaiz | PHI | Wu Wei Jung | TPE | RSCH 1 |
| 1989-11-22 | 57kg | Gowtas Abran | INA | Prabin Tuladhar | NEP | RSCH 1 |
| 1989-11-22 | 60kg | Leopoldo Cantancio | PHI | Chen Ming Hsu | TPE | RSCH 1 |
| 1989-11-22 | 60kg | Bernabe Dollente | PHI | Yang Xiaoqiang | CHN | 5:0 |
| 1989-11-22 | 60kg | Larry Nicholson | USA | Pra Bekar Mahartan | NEP | RSC 1 |
| 1989-11-22 | 63,5kg | Arlo Chavez | PHI | Todor Todorov | BUL | RSCH 1 |
| 1989-11-22 | 63,5kg | Ronald Wright | USA | Pan Lhleng Chen | TPE | RSC 2 |
| 1989-11-22 | 63,5kg | Shannan Taylor | AUS | Sang Ju Park | KOR | PTS |
Quarter-finals
| 1989-11-23 | 45kg | Roel Velasco | PHI | Mansueto Velasco | PHI | 5:0 |
| 1989-11-23 | 45kg | Songsak Kaenthao | THA | Usman Tahani | INA | 5:0 |
| 1989-11-23 | 48kg | Richard Gestopa | PHI | Sjamsul Siregar | INA | 5:0 |
| 1989-11-23 | 48kg | Hyung Il Kim | KOR | Damber Bhatta | NEP | 3:2 |
| 1989-11-23 | 48kg | Christopher Bryant | AUS | Leopoldo Serrantes | PHI | WO. |
| 1989-11-23 | 48kg | Liu Hsin Hung | TPE | Haelhim Shlan | MLZ | 5:0 |
| 1989-11-24 | 51kg | Bishnu Bahadur Singh | NEP | Ruel Lucine | PHI | 4:1 |
| 1989-11-24 | 51kg | Isidro Vicera | PHI | Yong Soon Chang | KOR | RSC 1 |
| 1989-11-24 | 51kg | Nshan Munchyan | URS | Hsu Lung Pin | TPE | RSC 1 |
| 1989-11-24 | 51kg | Chatchai Sasakul | THA | Jaime Desiacto | PHI | 5:0 |
| 1989-11-?? | 54kg | Timofey Skryabin | URS | Jae Ki Choi | KOR | PTS |
| 1989-11-?? | 54kg | Delfin Lucine | PHI | Veselin Dimitrov | BUL | PTS |
| 1989-11-?? | 54kg | Surapol Sankunrang | THA | Charlie Balena | PHI | PTS |
| 1989-11-?? | 54kg | Roberto Jalnaiz | PHI | Rico Maspaitela | INA | PTS |
| 1989-11-23 | 57kg | Vadim Prisyazhnyuk | URS | Hassen Vacakalen | BUL | 5:0 |
| 1989-11-23 | 57kg | Soon Chang | KOR | Adonis Tenero | PHI | RSC 3 |
| 1989-11-23 | 57kg | Reynaldo Balboa | PHI | Clay Jenkins | USA | RSC 1 |
| 1989-11-23 | 57kg | Ronald Chavez | PHI | Gowtas Abran | INA | PTS |
| 1989-11-24 | 60kg | Rolito Baiz | PHI | Narciso Caballero | PHI | 3:2 |
| 1989-11-24 | 60kg | Airat Khamatov | URS | Made Sukanadia | INA | 5:0 |
| 1989-11-24 | 60kg | Leopoldo Cantancio | PHI | Chul Kim Dong | KOR | WO. |
| 1989-11-24 | 60kg | Bernabe Dollente | PHI | Larry Nicholson | USA | 3:2 |
| 1989-11-24 | 63,5kg | Andreas Otto | GDR | Joel Junaco | PHI | 5:0 |
| 1989-11-24 | 63,5kg | Konstantin Tszyu | URS | Nelson Factoranan | PHI | KO 1 |
| 1989-11-24 | 63,5kg | Arlo Chavez | PHI | Victor Vicera | PHI | 5:0 |
| 1989-11-24 | 63,5kg | Shannan Taylor | AUS | Ronald Wright | USA | 3:2 |
| 1989-11-?? | 67kg | In Soo Choi | KOR | Todor Tehamov | BUL | PTS |
| 1989-11-23 | 71kg | Nam Jin Hyun | KOR | Patricio Gaspi | PHI | 3:2 |
| 1989-11-?? | 81kg | Allan Cromp | USA | Yang Hua Liang | TPE | RSC 2 |
| 1989-11-?? | 81kg | Henry Maske | GDR | Raymundo Suico | PHI | PTS |
Semi-finals
| 1989-11-27 | 45kg | Elias Recaido | PHI | ??? | ??? | ??? |
| 1989-11-27 | 45kg | Roel Velasco | PHI | Songsak Kaenthao | THA | ??? |
| 1989-11-27 | 48kg | Richard Gestopa | PHI | Hyung Il Kim | KOR | PTS |
| 1989-11-27 | 48kg | Liu Hsin Hung | TPE | Christopher Bryant | AUS | WO. |
| 1989-11-27 | 51kg | Isidro Vicera | PHI | Bishnu Bahadur Singh | NEP | PTS |
| 1989-11-27 | 51kg | Nshan Munchyan | URS | Chatchai Sasakul | THA | PTS |
| 1989-11-27 | 54kg | Timofey Skryabin | URS | Delfin Lucine | PHI | PTS |
| 1989-11-27 | 54kg | Roberto Jalnaiz | PHI | Surapol Sankunrang | THA | RSC 3 |
| 1989-11-27 | 57kg | Soon Chang | KOR | Vadim Prisyazhnyuk | URS | WO. |
| 1989-11-27 | 57kg | Ronald Chavez | PHI | Reynaldo Balboa | PHI | PTS |
| 1989-11-27 | 60kg | Airat Khamatov | URS | Rolito Baiz | PHI | PTS |
| 1989-11-27 | 60kg | Leopoldo Cantancio | PHI | Bernabe Dollente | PHI | PTS |
| 1989-11-27 | 63,5kg | Konstantin Tszyu | URS | Andreas Otto | GDR | PTS |
| 1989-11-27 | 63,5kg | Shannan Taylor | AUS | Arlo Chavez | PHI | PTS |
| 1989-11-27 | 67kg | John Coward | USA | Ifan Pioh | INA | RSC 1 |
| 1989-11-27 | 67kg | In Soo Choi | KOR | Mariano Gawid | PHI | PTS |
| 1989-11-27 | 71kg | Dan Connolly | USA | Mario Ticon | PHI | AB 3 |
| 1989-11-27 | 71kg | Albert Papilaya | INA | Nam Jin Hyun | KOR | PTS |
| 1989-11-27 | 75kg | Dmitriy Vybornov | URS | Yong Ho Kim | KOR | AB |
| 1989-11-27 | 75kg | Ernesto Coronel | PHI | Hung Pin Tian | TPE | PTS |
| 1989-11-27 | 81kg | Nurmagomed Shanavazov | URS | Yong In Kim | KOR | RSC 3 |
| 1989-11-27 | 81kg | Henry Maske | GDR | Allan Cromp | USA | PTS |
| 1989-11-27 | 91kg | Viktor Akshonov | URS | Axel Schulz | GDR | PTS |
Finals
| 1989-11-29 | 45kg | Elias Recaido | PHI | Roel Velasco | PHI | ??? |
| 1989-11-29 | 48kg | Richard Gestopa | PHI | Liu Hsin Hung | TPE | 5:0 |
| 1989-11-29 | 51kg | Nshan Munchyan | URS | Isidro Vicera | PHI | 5:0 |
| 1989-11-29 | 54kg | Roberto Jalnaiz | PHI | Timofey Skryabin | URS | 3:2 |
| 1989-11-29 | 57kg | Ronald Chavez | PHI | Soon Chang | KOR | 4:1 |
| 1989-11-29 | 60kg | Leopoldo Cantancio | PHI | Airat Khamatov | URS | 4:1 |
| 1989-11-29 | 63,5kg | Konstantin Tszyu | URS | Shannan Taylor | AUS | 5:0 |
| 1989-11-29 | 67kg | John Coward | USA | In Soo Choi | KOR | RSC 1 |
| 1989-11-29 | 71kg | Albert Papilaya | INA | Dan Connolly | USA | 5:0 |
| 1989-11-29 | 75kg | Dmitriy Vybornov | URS | Ernesto Coronel | PHI | RSC 1 |
| 1989-11-29 | 81kg | Henry Maske | GDR | Nurmagomed Shanavazov | URS | 4:1 |
| 1989-11-29 | 91kg | Viktor Akshonov | URS | Sun Xiaoqin | CHN | RSC 1 |
| 1989-11-29 | +91kg | Stoyan Stoyanov | BUL | Audie Leopoldo | PHI | RSC 1 |