# 1991 IBF World Championships – Men's singles

The 1991 IBF World Championships (World Badminton Championships) were held in Copenhagen, Denmark in 1991. Following the results of the men's singles.

## Main stage
### Section 1

| First Round | First Round | First Round | First Round | Second Round | Second Round | Second Round | Second Round | Third Round | Third Round | Third Round | Fourth Round | Fourth Round | Fourth Round |
| | | | | A Wiranata | 15 | 15 | | | | | | | |
| | | | | M Keck | 7 | 1 | | | | | | | |
| | | | | | | | | A Wiranata | 15 | 15 | | | |
| | | | | | | | | K Vella | 6 | 4 | | | |
| | | | | K Vella | w | / | o | | | | | | |
| | | | | B Blanshard | | | | | | | | | |
| | | | | | | | | | | | A Wiranata | 15 | 15 |
| | | | | | | | | | | | Kim H-k | 2 | 9 |
| | | | | H Fischer | 15 | 15 | | | | | | | |
| | | | | F Vigneron | 10 | 5 | | | | | | | |
| | | | | | | | | H Fischer | 9 | 5 | | | |
| Kim H-k | 15 | 15 | | | | | | Kim H-k | 15 | 15 | | | |
| P Mazur | 2 | 6 | | Kim H-k | 15 | 15 | | | | | | | |
| N Pissis | 15 | 3 | 6 | A Miranda | 1 | 1 | | | | | | | |
| A Miranda | 13 | 15 | 15 | | | | | | | | | | |

### Section 2

| First Round | First Round | First Round | First Round | Second Round | Second Round | Second Round | Second Round | Third Round | Third Round | Third Round | Fourth Round | Fourth Round | Fourth Round |
| | | | | R Sidek | 15 | 9 | 15 | | | | | | |
| | | | | P J. Bush | 2 | 15 | 10 | | | | | | |
| | | | | | | | | R Sidek | 15 | 15 | | | |
| | | | | | | | | E van Dalm | 1 | 5 | | | |
| | | | | E van Dalm | 15 | 15 | | | | | | | |
| | | | | G Allet | 2 | 7 | | | | | | | |
| | | | | | | | | | | | R Sidek | 10 | 7 |
| | | | | | | | | | | | Yu LZ | 15 | 15 |
| | | | | J Tuvesson | 15 | 15 | | | | | | | |
| | | | | K van Breda | 0 | 0 | | | | | | | |
| | | | | | | | | J Tuvesson | 11 | 4 | | | |
| Yu LZ | 15 | 16 | 15 | | | | | Yu LZ | 15 | 15 | | | |
| R Bagga | 10 | 17 | 12 | Yu LZ | 15 | 15 | | | | | | | |
| J Rodriguez | 12 | 12 | | J Eriksson | 3 | 1 | | | | | | | |
| J Eriksson | 15 | 15 | | | | | | | | | | | |

### Section 3

| First Round | First Round | First Round | First Round | Second Round | Second Round | Second Round | Second Round | Third Round | Third Round | Third Round | Fourth Round | Fourth Round | Fourth Round |
| | | | | M Frost | 9 | 15 | 10 | | | | | | |
| | | | | A Antropov | 15 | 1 | 15 | | | | | | |
| | | | | | | | | A Antropov | 15 | 15 | | | |
| | | | | | | | | H Motoyama | 3 | 9 | | | |
| | | | | J Aalto | 8 | 6 | | | | | | | |
| | | | | H Motoyama | 15 | 15 | | | | | | | |
| | | | | | | | | | | | A Antropov | 15 | 15 |
| | | | | | | | | | | | G Stewart | 5 | 10 |
| | | | | D Fatauchi | | | | | | | | | |
| | | | | G Stewart | w | / | o | | | | | | |
| | | | | | | | | G Stewart | 15 | 15 | | | |
| Ri N-c | 15 | 15 | | | | | | Ri N-c | 6 | 3 | | | |
| P Somani | 2 | 8 | | Ri N-c | w | / | o | | | | | | |
| J Britton | w | / | o | J Britton | | | | | | | | | |
| M Ali Yar Beg | | | | | | | | | | | | | |

### Section 4

| First Round | First Round | First Round | Second Round | Second Round | Second Round | Third Round | Third Round | Third Round | Fourth Round | Fourth Round | Fourth Round |
| | | | D Hall | 15 | 15 | | | | | | |
| | | | Ø Berntsen | 3 | 3 | | | | | | |
| | | | | | | D Hall | 15 | 15 | | | |
| | | | | | | A Muir | 8 | 2 | | | |
| | | | G Henderson | 11 | 8 | | | | | | |
| | | | A Muir | 15 | 15 | | | | | | |
| | | | | | | | | | D Hall | 15 | 15 |
| | | | | | | | | | P Andreasson | 7 | 3 |
| | | | D McDonald | 4 | 13 | | | | | | |
| | | | B Kristjánsson | 15 | 18 | | | | | | |
| | | | | | | B Kristjánsson | 5 | 6 | | | |
| P Andreasson | 15 | 15 | | | | P Andreasson | 15 | 15 | | | |
| H Mueller | 2 | 6 | P Andreasson | 15 | 15 | | | | | | |
| Chan K N | 15 | 15 | Chan K N | 6 | 6 | | | | | | |
| S Renault | 4 | 6 | | | | | | | | | |

### Section 5

| First Round | First Round | First Round | Second Round | Second Round | Second Round | Second Round | Third Round | Third Round | Third Round | Fourth Round | Fourth Round | Fourth Round |
| | | | Zhao JH | 15 | 15 | | | | | | | |
| | | | P Stevenson | 11 | 11 | | | | | | | |
| | | | | | | | Zhao JH | 15 | 15 | | | |
| | | | | | | | Liu E-h | 6 | 8 | | | |
| | | | Liu E-h | 10 | 15 | 15 | | | | | | |
| | | | S Bakshi | 15 | 3 | 6 | | | | | | |
| | | | | | | | | | | Zhao JH | 15 | 15 |
| | | | | | | | | | | J Olsson | 9 | 12 |
| | | | T Gibson | | | | | | | | | |
| | | | Wen W | w | / | o | | | | | | |
| | | | | | | | Wen W | 8 | 13 | | | |
| M Farrugia | 3 | 2 | | | | | J Olsson | 15 | 15 | | | |
| F Balaban | 15 | 15 | F Balaban | 3 | 0 | | | | | | | |
| V Khamthong | 8 | 7 | J Olsson | 15 | 15 | | | | | | | |
| J Olsson | 15 | 15 | | | | | | | | | | |

### Section 6

| First Round | First Round | First Round | Second Round | Second Round | Second Round | Second Round | Third Round | Third Round | Third Round | Fourth Round | Fourth Round | Fourth Round |
| | | | H Susanto | w | / | o | | | | | | |
| | | | R B. Shrestha | | | | | | | | | |
| | | | | | | | H Susanto | 15 | 15 | | | |
| | | | | | | | C Bruil | 10 | 11 | | | |
| | | | C Bruil | 15 | 15 | | | | | | | |
| | | | P Charalambidis | 9 | 11 | | | | | | | |
| | | | | | | | | | | H Susanto | 15 | 15 |
| | | | | | | | | | | C Thomsen | 5 | 5 |
| | | | T Farooq | 7 | 8 | | | | | | | |
| | | | C Thomsen | 15 | 15 | | | | | | | |
| | | | | | | | C Thomsen | 15 | 15 | | | |
| Kwan Y M | 15 | 15 | | | | | Kwan Y M | 12 | 4 | | | |
| Ø Larsen | 8 | 3 | Kwan Y M | 15 | 15 | | | | | | | |
| J-F Massias | 18 | 18 | J-F Massias | 1 | 7 | | | | | | | |
| Y Borisov | 15 | 15 | | | | | | | | | | |

### Section 7

| First Round | First Round | First Round | First Round | Second Round | Second Round | Second Round | Third Round | Third Round | Third Round | Third Round | Fourth Round | Fourth Round | Fourth Round |
| | | | | F Permadi | 15 | 15 | | | | | | | |
| | | | | Chen R | 5 | 5 | | | | | | | |
| | | | | | | | F Permadi | 4 | 15 | 15 | | | |
| | | | | | | | S P. Butler | 15 | 10 | 11 | | | |
| | | | | S P. Butler | 15 | 15 | | | | | | | |
| | | | | G Dussain | 3 | 1 | | | | | | | |
| | | | | | | | | | | | F Permadi | 18 | 15 |
| | | | | | | | | | | | H Sperre Jr. | 15 | 12 |
| | | | | H Sperre Jr. | 18 | 18 | | | | | | | |
| | | | | C Nyffenegger | 13 | 14 | | | | | | | |
| | | | | | | | H Sperre Jr. | 15 | 15 | | | | |
| C Jogis | 15 | 10 | 15 | | | | C Jogis | 4 | 6 | | | | |
| D Poste | 12 | 15 | 8 | C Jogis | 15 | 15 | | | | | | | |
| E de la Torre Saavedra | w | / | o | E de la Torre Saavedra | 9 | 9 | | | | | | | |
| M S Majeed | | | | | | | | | | | | | |

### Section 8

| First Round | First Round | First Round | Second Round | Second Round | Second Round | Second Round | Third Round | Third Round | Third Round | Fourth Round | Fourth Round | Fourth Round |
| | | | T Stuer-Lauridsen | 15 | 15 | | | | | | | |
| | | | R Liljequist | 13 | 7 | | | | | | | |
| | | | | | | | T Stuer-Lauridsen | 15 | 15 | | | |
| | | | | | | | D Galt | 3 | 0 | | | |
| | | | A Meijer | 10 | 5 | | | | | | | |
| | | | D Galt | 15 | 15 | | | | | | | |
| | | | | | | | | | | T Stuer-Lauridsen | 15 | 18 |
| | | | | | | | | | | Ahn J-c | 6 | 15 |
| | | | G Adolfsson | 6 | 7 | | | | | | | |
| | | | Ahn J-c | 15 | 15 | | | | | | | |
| | | | | | | | Ahn J-c | 15 | 15 | | | |
| Y de Negri | 6 | 2 | | | | | F Machida | 6 | 8 | | | |
| T Mendrek | 15 | 15 | T Mendrek | 1 | 15 | 8 | | | | | | |
| F Machida | 17 | 15 | F Machida | 15 | 13 | 15 | | | | | | |
| N Zuyev | 15 | 8 | | | | | | | | | | |

### Section 9

| First Round | First Round | First Round | First Round | Second Round | Second Round | Second Round | Second Round | Third Round | Third Round | Third Round | Third Round | Fourth Round | Fourth Round | Fourth Round | Fourth Round |
| H Götschl | 8 | 15 | 15 | | | | | | | | | | | | |
| Ri Y-h | 15 | 3 | 5 | H Götschl | 1 | 15 | | | | | | | | | |
| P Pelupessy | 9 | 15 | 15 | P Pelupessy | 18 | 15 | | | | | | | | | |
| É Thobois | 15 | 10 | 4 | | | | | P Pelupessy | 8 | 15 | 14 | | | | |
| Wong W L | 15 | 15 | | | | | | Lee G-j | 15 | 8 | 17 | | | | |
| P Blackburn | 4 | 4 | | Wong W L | 15 | 15 | 6 | | | | | | | | |
| | | | | Lee G-j | 8 | 17 | 15 | | | | | | | | |
| | | | | | | | | | | | | Lee G-j | 15 | 7 | 8 |
| | | | | | | | | | | | | J Suprianto | 9 | 15 | 15 |
| | | | | B Larsen | 15 | 17 | | | | | | | | | |
| | | | | K Scott | 9 | 15 | | | | | | | | | |
| | | | | | | | | B Larsen | 3 | 8 | | | | | |
| | | | | | | | | J Suprianto | 15 | 15 | | | | | |
| | | | | I Ivanov | 13 | 4 | | | | | | | | | |
| | | | | J Suprianto | 18 | 15 | | | | | | | | | |

### Section 10

| First Round | First Round | First Round | First Round | Second Round | Second Round | Second Round | Second Round | Third Round | Third Round | Third Round | Fourth Round | Fourth Round | Fourth Round |
| D Humble | 13 | 8 | | | | | | | | | | | |
| D Zięba | 15 | 15 | | D Zięba | 13 | 15 | 15 | | | | | | |
| T Reidy | w | / | o | T Reidy | 18 | 6 | 10 | | | | | | |
| S Odusola | | | | | | | | D Zięba | 15 | 9 | | | |
| | | | | | | | | H Eto | 18 | 15 | | | |
| | | | | B Bhurtun | | | | | | | | | |
| | | | | H Eto | w | / | o | | | | | | |
| | | | | | | | | | | | H Eto | 6 | 5 |
| | | | | | | | | | | | P-E Høyer Larsen | 15 | 15 |
| | | | | A W. Nielsen | 2 | 7 | | | | | | | |
| | | | | P Axelsson | 15 | 15 | | | | | | | |
| | | | | | | | | P Axelsson | 12 | 5 | | | |
| | | | | | | | | P-E Høyer Larsen | 15 | 15 | | | |
| | | | | L Lindelöf | 9 | 9 | | | | | | | |
| | | | | P-E Høyer Larsen | 15 | 15 | | | | | | | |

### Section 11

| First Round | First Round | First Round | First Round | Second Round | Second Round | Second Round | Third Round | Third Round | Third Round | Third Round | Fourth Round | Fourth Round | Fourth Round |
| J-M Duverge | | | | | | | | | | | | | |
| S Saxena | w | / | o | S Saxena | 15 | 15 | | | | | | | |
| S Kuhl | 15 | 15 | | S Kuhl | 8 | 9 | | | | | | | |
| S Sylvester | 2 | 1 | | | | | S Saxena | 15 | 10 | 17 | | | |
| | | | | | | | P Vanneste | 4 | 15 | 14 | | | |
| | | | | P Vanneste | 15 | 15 | | | | | | | |
| | | | | M Ravizzotti | 1 | 2 | | | | | | | |
| | | | | | | | | | | | S Saxena | 2 | 2 |
| | | | | | | | | | | | Liu J | 15 | 15 |
| | | | | R Matthey de l'Etang | 0 | 8 | | | | | | | |
| | | | | I Dmitriev | 15 | '15 | | | | | | | |
| | | | | | | | I Dmitriev | 6 | 13 | | | | |
| | | | | | | | Liu J | 15 | 15 | | | | |
| | | | | E Lia | 3 | 3 | | | | | | | |
| | | | | Liu J | 15 | 15 | | | | | | | |

### Section 12

| First Round | First Round | First Round | First Round | Second Round | Second Round | Second Round | Third Round | Third Round | Third Round | Fourth Round | Fourth Round | Fourth Round |
| S Spiteri | 2 | 6 | | | | | | | | | | |
| J Koch | 15 | 15 | | J Koch | 6 | 8 | | | | | | |
| I Sydie | w | / | o | I Sydie | 15 | 15 | | | | | | |
| P D Rana | | | | | | | I Sydie | 10 | 6 | | | |
| | | | | | | | Lee M-c | 15 | 15 | | | |
| | | | | K Erichsen | 5 | 9 | | | | | | |
| | | | | Lee M-c | 15 | 15 | | | | | | |
| | | | | | | | | | | Lee M-c | 11 | 9 |
| | | | | | | | | | | Foo K K | 15 | 15 |
| | | | | K Harrison | 15 | 15 | | | | | | |
| | | | | B Galmes | 3 | 2 | | | | | | |
| | | | | | | | K Harrison | 10 | 5 | | | |
| | | | | | | | Foo K K | 15 | 15 | | | |
| | | | | F de la Torre Saavedra | 3 | 2 | | | | | | |
| | | | | Foo K K | 15 | 15 | | | | | | |

### Section 13

| First Round | First Round | First Round | Second Round | Second Round | Second Round | Second Round | Third Round | Third Round | Third Round | Fourth Round | Fourth Round | Fourth Round | Fourth Round |
| I Frederiksen | 18 | 15 | | | | | | | | | | | |
| P Jäntti | 15 | 7 | I Frederiksen | 15 | 15 | | | | | | | | |
| Wei Y | 15 | 15 | Wei Y | 6 | 3 | | | | | | | | |
| P Uvarov | 12 | 2 | | | | | I Frederiksen | 15 | 15 | | | | |
| | | | | | | | K Mitteldorf | 8 | 3 | | | | |
| | | | K Mitteldorf | 15 | 15 | | | | | | | | |
| | | | A Klotzner | 6 | 4 | | | | | | | | |
| | | | | | | | | | | I Frederiksen | 5 | 15 | 9 |
| | | | | | | | | | | S Kukasemkij | 15 | 4 | 15 |
| | | | I Amir | | | | | | | | | | |
| | | | B Lee | w | / | o | | | | | | | |
| | | | | | | | B Lee | 6 | 1 | | | | |
| | | | | | | | S Kukasemkij | 15 | 15 | | | | |
| | | | B Lalov | 3 | 7 | | | | | | | | |
| | | | S Kukasemkij | 15 | 15 | | | | | | | | |

### Section 14

| First Round | First Round | First Round | Second Round | Second Round | Second Round | Second Round | Third Round | Third Round | Third Round | Fourth Round | Fourth Round | Fourth Round |
| G Thomas | 15 | 15 | | | | | | | | | | |
| S Cognie | 0 | 3 | G Thomas | 17 | 15 | | | | | | | |
| F Panel | 3 | 10 | N Hall | 14 | 3 | | | | | | | |
| N Hall | 15 | 15 | | | | | G Thomas | 11 | 9 | | | |
| | | | | | | | Wan ZW | 15 | 15 | | | |
| | | | O Onazi | | | | | | | | | |
| | | | Wan ZW | w | / | o | | | | | | |
| | | | | | | | | | | Wan ZW | 6 | 6 |
| | | | | | | | | | | A Budikusuma | 15 | 15 |
| | | | Tse B | 11 | 12 | | | | | | | |
| | | | J Herrgardh | 15 | 15 | | | | | | | |
| | | | | | | | J Herrgardh | 6 | 6 | | | |
| | | | | | | | A Budikusuma | 15 | 15 | | | |
| | | | D Cole | 1 | 1 | | | | | | | |
| | | | A Budikusuma | 15 | 15 | | | | | | | |

### Section 15

| First Round | First Round | First Round | Second Round | Second Round | Second Round | Third Round | Third Round | Third Round | Third Round | Fourth Round | Fourth Round | Fourth Round | Fourth Round |
| J Dawson | 15 | 15 | | | | | | | | | | | |
| T Wåland | 6 | 7 | J Dawson | 15 | 15 | | | | | | | | |
| G Schänzler | 15 | 15 | G Schänzler | 6 | 12 | | | | | | | | |
| P Báša | 9 | 4 | | | | J Dawson | 9 | 15 | 8 | | | | |
| | | | | | | R Magnusson | 15 | 10 | 15 | | | | |
| | | | Kang K-j | 2 | 11 | | | | | | | | |
| | | | R Magnusson | 15 | 15 | | | | | | | | |
| | | | | | | | | | | R Magnusson | 15 | 6 | 10 |
| | | | | | | | | | | J P Nierhoff | 7 | 15 | 15 |
| | | | J van Dijk | 15 | 15 | | | | | | | | |
| | | | E Clarisse | 6 | 3 | | | | | | | | |
| | | | | | | J van Dijk | 5 | 7 | | | | | |
| | | | | | | J P Nierhoff | 15 | 15 | | | | | |
| | | | Kim R-g | 5 | 6 | | | | | | | | |
| | | | J P Nierhoff | 15 | 15 | | | | | | | | |

### Section 16

| First Round | First Round | First Round | First Round | Second Round | Second Round | Second Round | Second Round | Third Round | Third Round | Third Round | Fourth Round | Fourth Round | Fourth Round | Fourth Round |
| A Þ Hallgrímson | 12 | 3 | | | | | | | | | | | | |
| B Suprianto | 15 | 15 | | B Suprianto | 15 | 15 | | | | | | | | |
| C Jeanjean | 15 | 3 | 3 | T Wapp | 13 | 1 | | | | | | | | |
| T Wapp | 9 | 15 | 15 | | | | | B Suprianto | 15 | 15 | | | | |
| | | | | | | | | M A. Smith | 9 | 5 | | | | |
| | | | | J Hankiewicz | 9 | 5 | | | | | | | | |
| | | | | M A. Smith | 15 | 15 | | | | | | | | |
| | | | | | | | | | | | B Suprianto | 1 | 18 | 6 |
| | | | | | | | | | | | Wu WK | 15 | 13 | 15 |
| | | | | H Fuchs | 15 | 12 | 7 | | | | | | | |
| | | | | T Tuominen | 10 | 15 | 15 | | | | | | | |
| | | | | | | | | T Tuominen | 5 | 7 | | | | |
| | | | | | | | | Wu WK | 15 | 15 | | | | |
| | | | | D Serrano | 6 | 0 | | | | | | | | |
| | | | | Wu WK | 15 | 15 | | | | | | | | |

## Final stage

| Fifth Round | Fifth Round | Fifth Round | Fifth Round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| Ardy Wiranata | 15 | 15 | | | | | | | | | | | | | |
| Yu Lizhi | 9 | 10 | | | | | | | | | | | | | |
| Yu Lizhi | 9 | 10 | | Ardy Wiranata | 15 | 10 | 18 | | | | | | | | |
| | | | | Andrey Antropov | 4 | 15 | 15 | | | | | | | | |
| Andrey Antropov | 15 | 15 | | Andrey Antropov | 4 | 15 | 15 | | | | | | | | |
| Darren Hall | 3 | 3 | | | | | | | | | | | | | |
| Darren Hall | 3 | 3 | | | | | | Ardy Wiranata | 2 | 15 | 6 | | | | |
| | | | | | | | | Zhao Jianhua | 15 | 10 | 15 | | | | |
| Zhao Jianhua | 17 | 15 | | | | | | | | | | Zhao Jianhua | 15 | 10 | 15 | | | |
| Hermawan Susanto | 15 | 7 | | | | | | | | | | | | | |
| Hermawan Susanto | 15 | 7 | | Zhao Jianhua | 15 | 18 | | | | | | | | | |
| | | | | Thomas Stuer-Lauridsen | 10 | 13 | | | | | | | | | |
| Fung Permadi | 2 | 15 | 12 | Thomas Stuer-Lauridsen | 10 | 13 | | | | | | | | | |
| Thomas Stuer-Lauridsen | 15 | 4 | 15 | | | | | | | | | | | | |
| Thomas Stuer-Lauridsen | 15 | 4 | 15 | | | | | | | | | | Zhao Jianhua | 18 | 15 |
| | | | | | | | | | | | | | Allan Budikusuma | 13 | 4 |
| Joko Suprianto | 15 | 15 | | | | | | | | | | | | | | Allan Budikusuma | 13 | 4 |
| Poul-Erik Høyer Larsen | 10 | 3 | | | | | | | | | | | | | |
| Poul-Erik Høyer Larsen | 10 | 3 | | Joko Suprianto | 15 | 6 | 8 | | | | | | | | |
| | | | | Liu Jun | 11 | 15 | 15 | | | | | | | | |
| Liu Jun | 15 | 15 | | Liu Jun | 11 | 15 | 15 | | | | | | | | |
| Foo Kok Keong | 12 | 6 | | | | | | | | | | | | | |
| Foo Kok Keong | 12 | 6 | | | | | | Liu Jun | 11 | 11 | | | | | |
| | | | | | | | | Allan Budikusuma | 15 | 15 | | | | | |
| Sompol Kukasemkij | 7 | 2 | | | | | | | | | | Allan Budikusuma | 15 | 15 | | | | |
| Allan Budikusuma | 15 | 15 | | | | | | | | | | | | | |
| Allan Budikusuma | 15 | 15 | | Allan Budikusuma | 9 | 15 | 17 | | | | | | | | |
| | | | | Wu Wenkai | 15 | 4 | 14 | | | | | | | | |
| Jens Peter Nierhoff | 15 | 16 | 9 | Wu Wenkai | 15 | 4 | 14 | | | | | | | | |
| Wu Wenkai | 10 | 18 | 15 | | | | | | | | | | | | |