Hamburg 1991 ATP
Final
| Winner | Loser | Score | |
|---|---|---|---|
| Karel Novacek | d. | Magnus Gustafsson | 6-3 6-3 5-7 0-6 6-1 |
Semifinals
| Winner | Loser | Score | |
|---|---|---|---|
| Karel Novacek | d. | Michael Stich | 6-3 2-6 7-6(5) |
| Magnus Gustafsson | d. | Goran Prpic | 6-2 1-6 7-6(4) |
Quarterfinals
| Winner | Loser | Score | |
|---|---|---|---|
| Michael Stich | d. | Stefan Edberg | 6-2 7-6(4) |
| Karel Novacek | d. | Mark Koevermans | 4-6 6-4 6-2 |
| Goran Prpic | d. | Goran Ivanisevic | 7-5 3-0 RET |
| Magnus Gustafsson | d. | Yannick Noah | 6-1 6-4 |
Round of 16
| Winner | Loser | Score | |
|---|---|---|---|
| Stefan Edberg | d. | Ronald Agenor | 6-2 6-1 |
| Michael Stich | d. | Francisco Clavet | 6-1 6-4 |
| Karel Novacek | d. | Pete Sampras | 6-4 6-2 |
| Mark Koevermans | d. | Sergi Bruguera | 6-4 6-3 |
| Goran Prpic | d. | Horacio De La Pena | 6-3 6-4 |
| Goran Ivanisevic | d. | Alexander Volkov | 6-1 6-3 |
| Magnus Gustafsson | d. | Cristiano Caratti | 7-5 3-6 6-2 |
| Yannick Noah | d. | Renzo Furlan | 1-6 6-4 6-3 |
Round of 32
| Winner | Loser | Score | |
|---|---|---|---|
| Stefan Edberg | d. | Alexander Mronz | 6-3 6-1 |
| Ronald Agenor | d. | Aaron Krickstein | 7-5 0-6 6-2 |
| Michael Stich | d. | Paul Haarhuis | 7-5 6-0 |
| Francisco Clavet | d. | Emilio Sanchez | 6-3 4-6 6-4 |
| Pete Sampras | d. | Horst Skoff | 6-3 4-6 6-4 |
| Karel Novacek | d. | Omar Camporese | 6-3 6-2 |
| Mark Koevermans | d. | Franco Davin | 6-4 6-4 |
| Sergi Bruguera | d. | Martin Jaite | 6-3 6-1 |
| Horacio De La Pena | d. | Jim Courier | 6-7(3) 6-2 6-4 |
| Goran Prpic | d. | Jordi Arrese | 6-3 6-3 |
| Alexander Volkov | d. | Arnaud Boetsch | 7-6(4) 7-6(1) |
| Goran Ivanisevic | d. | Luiz Mattar | 6-1 6-1 |
| Cristiano Caratti | d. | Jonas Svensson | 6-2 6-2 |
| Magnus Gustafsson | d. | Andrei Cherkasov | 3-6 6-4 6-4 |
| Yannick Noah | d. | Magnus Larsson | 6-4 1-6 6-3 |
| Renzo Furlan | d. | Ivan Lendl | 7-5 6-4 |