# 1985 IBF World Championships – Men's singles

The 1985 IBF World Championships (World Badminton Championships) were held in Calgary, Canada, from June 10 to June 16, 1985. Following the results of the men's singles. Men's top seed Zhao Jianhua of China withdrew from the tournament after suffering from pneumonia.

## Main stage
### Section 1

| First Round | First Round | First Round | Second Round | Second Round | Second Round | Third Round | Third Round | Third Round | Quarter Finals | Quarter Finals | Quarter Finals | Quarter Finals |
| Ding Qiqing | 15 | 17 | | | | | | | | | | |
| Chan Chi Choi | 3 | 15 | Ding | 15 | 18 | | | | | | | |
| Mike Butler | 15 | 15 | Butler | 13 | 14 | | | | | | | |
| Sakrapee Thongsari | 6 | 5 | | | | Ding | 15 | 15 | | | | |
| Dan Travers | 15 | 15 | | | | Travers | 7 | 2 | | | | |
| Chris Trapper | 3 | 2 | Travers | 15 | 15 | | | | | | | |
| Gustavo Salazar | 2 | 6 | González | 7 | 2 | | | | | | | |
| Roy Díaz González | 15 | 15 | | | | | | | Ding | 15 | 11 | 7 |
| Jens Peter Nierhoff | 15 | 15 | | | | | | | Nierhoff | 11 | 15 | 15 |
| Sung Han-kook | 9 | 11 | Nierhoff | 15 | 15 | | | | | | | |
| Rolf Rüsseler | 10 | 5 | Hall | 9 | 4 | | | | | | | |
| Darren Hall | 15 | 15 | | | | Nierhoff | 15 | 15 | | | | |
| Ulf Johansson | 15 | 15 | | | | Misra | 6 | 5 | | | | |
| Gan Rong-Yih | 2 | 11 | Johansson | 4 | 9 | | | | | | | |
| Hiroshi Nishiyami | 11 | 9 | Misra | 15 | 15 | | | | | | | |
| Sanat Misra | 15 | 15 | | | | | | | | | | |

### Section 2

| First Round | First Round | First Round | First Round | Second Round | Second Round | Second Round | Third Round | Third Round | Third Round | Third Round | Quarter Finals | Quarter Finals | Quarter Finals |
| Han Jian | 15 | 5 | 15 | | | | | | | | | | |
| Ong Beng Teong | 3 | 15 | 10 | Han | 15 | 15 | | | | | | | |
| Shuuji Matsuno | 10 | 15 | 13 | Modi | 1 | 7 | | | | | | | |
| Syed Modi | 15 | 7 | 15 | | | | Han | 15 | 15 | | | | |
| Pär-Gunnar Jönsson | 15 | 15 | | | | | Saputra | 7 | 3 | | | | |
| Gregor Berden | 2 | 4 | | Jönsson | 9 | 11 | | | | | | | |
| Claus Fischer | 7 | 3 | | Saputra | 15 | 15 | | | | | | | |
| Hendry Saputra | 15 | 15 | | | | | | | | | Han | 15 | 15 |
| Nick Yates | 15 | 15 | | | | | | | | | Carlsen | 10 | 2 |
| Lee Deuk-choon | 8 | 8 | | Yates | 15 | 15 | | | | | | | |
| Broddi Kristjansson | 17 | 15 | | Kristjansson | 7 | 2 | | | | | | | |
| Samson Egbeyemi | 14 | 1 | | | | | Yates | 15 | 7 | 12 | | | |
| Peter Rawlek | 12 | 10 | | | | | Carlsen | 13 | 15 | 15 | | | |
| Torben Carlsen | 15 | 15 | | Carlsen | 15 | 15 | | | | | | | |
| Chris Jogis | 15 | 18 | | Jogis | 12 | 11 | | | | | | | |
| Uwe Scherpen | 11 | 16 | | | | | | | | | | | |

### Section 3

| First Round | First Round | First Round | First Round | Second Round | Second Round | Second Round | Third Round | Third Round | Third Round | Third Round | Quarter Finals | Quarter Finals | Quarter Finals |
| Heinz Fischer | 15 | 18 | | | | | | | | | | | |
| Rodney Barton | 12 | 16 | | H. Fischer | 0 | 5 | | | | | | | |
| Icuk Sugiarto | 15 | 15 | | Sugiarto | 15 | 15 | | | | | | | |
| Hiroyuki Hasegawa | 3 | 5 | | | | | Sugiarto | 15 | 15 | 15 | | | |
| Foo Kok Keong | 11 | 15 | 12 | | | | Baddeley | 18 | 8 | 11 | | | |
| Vimal Kumar | 15 | 7 | 8 | Foo K. K. | 6 | 15 | | | | | | | |
| Chang Wen-Sung | 5 | 3 | | Baddeley | 15 | 15 | | | | | | | |
| Steve Baddeley | 15 | 15 | | | | | | | | | Sugiarto | 8 | 6 |
| Ib Frederiksen | 15 | 15 | | | | | | | | | Yang | 15 | 15 |
| Ernesto de la Torre | 0 | 3 | | Frederiksen | 15 | 15 | | | | | | | |
| Surachi Makkasasithorn | 15 | 10 | 18 | Makkasasithorn | 6 | 4 | | | | | | | |
| Fernando de la Torre | 9 | 15 | 13 | | | | Frederiksen | 18 | 10 | 11 | | | |
| Jan-Eric Antonsson | 15 | 6 | 15 | | | | Yang | 17 | 15 | 15 | | | |
| Graeme Robson | 8 | 15 | 13 | Antonsson | 11 | 7 | | | | | | | |
| Choi Byung-hak | 3 | 9 | | Yang | 15 | 15 | | | | | | | |
| Yang Yang | 15 | 15 | | | | | | | | | | | |

### Section 4

| First Round | First Round | First Round | First Round | Second Round | Second Round | Second Round | Third Round | Third Round | Third Round | Quarter Finals | Quarter Finals | Quarter Finals |
| Steve Butler | 15 | 4 | 15 | | | | | | | | | |
| Yang Qiangli | 11 | 15 | 13 | Butler | 7 | 11 | | | | | | |
| Claude Tremblay | 5 | 3 | | Kukasemkij | 15 | 15 | | | | | | |
| Sompol Kukasemkij | 15 | 15 | | | | | Kukasemkij | 12 | 12 | | | |
| Benjamin Orakpo | 9 | 10 | | | | | Padukone | 15 | 15 | | | |
| Clement Ogbo | 15 | 15 | | Ogbo | 3 | 1 | | | | | | |
| Tariq Farooq | 7 | 3 | | Padukone | 15 | 15 | | | | | | |
| Prakash Padukone | 15 | 15 | | | | | | | | Padukone | 4 | 6 |
| Alex White | 15 | 15 | | | | | | | | Frost | 15 | 15 |
| Kevin Hussey | 2 | 10 | | White | 17 | 15 | | | | | | |
| Federico Valdez | 1 | 6 | | Park | 15 | 2 | | | | | | |
| Park Sung-bae | 15 | 15 | | | | | White | 3 | 3 | | | |
| Harald Klauer | 13 | 16 | | | | | Frost | 15 | 15 | | | |
| John Goss | 15 | 17 | | Goss | 3 | 3 | | | | | | |
| Shinji Matsuura | 4 | 5 | | Frost | 15 | 15 | | | | | | |
| Morten Frost | 15 | 15 | | | | | | | | | | |

## Finals

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Finals | Finals | Finals | Finals |
| 1 | Ding Qiqing | 15 | 11 | 7 | | | | | | | |
| 8 | Jens Peter Nierhoff | 11 | 15 | 15 | | | | | | | |
| 8 | Jens Peter Nierhoff | 11 | 15 | 15 | Jens Peter Nierhoff | 9 | 14 | | | | |
| | | | | | Han Jian | 15 | 17 | | | | |
| 4 | Han Jian | 15 | 15 | | Han Jian | 15 | 17 | | | | |
| 5 | Torben Carlsen | 10 | 2 | | | | | | | | |
| 5 | Torben Carlsen | 10 | 2 | | | | | Han Jian | 14 | 15 | 15 |
| | | | | | | | | Morten Frost | 18 | 10 | 8 |
| 3 | Icuk Sugiarto | 6 | 8 | | | | | | | | | Morten Frost | 18 | 10 | 8 |
| 6 | Yang Yang | 15 | 15 | | | | | | | | |
| 6 | Yang Yang | 15 | 15 | | Yang Yang | 8 | 5 | | | | |
| | | | | | Morten Frost | 15 | 15 | | | | |
| 2 | Prakash Padukone | 4 | 6 | | Morten Frost | 15 | 15 | | | | |
| 7 | Morten Frost | 15 | 15 | | | | | | | | |