Geneva 1991 ATP
Final
| Winner | Loser | Score | |
|---|---|---|---|
| Thomas Muster | d. | Horst Skoff | 6-2 6-4 |
Semifinals
| Winner | Loser | Score | |
|---|---|---|---|
| Thomas Muster | d. | Andrei Medvedev | 7-6(3) 7-6(5) |
| Horst Skoff | d. | Jordi Arrese | 7-6(8) 6-2 |
Quarterfinals
| Winner | Loser | Score | |
|---|---|---|---|
| Thomas Muster | d. | Sergi Bruguera | 4-6 6-4 6-4 |
| Andrei Medvedev | d. | Christian Miniussi | 6-4 5-7 7-5 |
| Horst Skoff | d. | Horacio De La Pena | 7-6(3) 4-6 6-1 |
| Jordi Arrese | d. | Jaime Oncins | 4-6 6-4 7-5 |
Round of 16
| Winner | Loser | Score | |
|---|---|---|---|
| Sergi Bruguera | d. | Claudio Mezzadri | 7-6(6) 1-6 6-1 |
| Thomas Muster | d. | Guillermo Perez Roldan | 4-6 6-1 6-2 |
| Christian Miniussi | d. | Goran Prpic | 6-7(7) 6-0 7-5 |
| Andrei Medvedev | d. | Eduardo Masso | 5-7 7-6(3) 6-1 |
| Horacio De La Pena | d. | Alberto Mancini | 6-1 3-6 6-4 |
| Horst Skoff | d. | Miguel Merz | 6-2 6-0 |
| Jaime Oncins | d. | Carsten Arriens | 7-5 5-7 7-5 |
| Jordi Arrese | d. | Veli Paloheimo | 6-2 3-6 7-5 |
Round of 32
| Winner | Loser | Score | |
|---|---|---|---|
| Sergi Bruguera | d. | Bart Wuyts | 6-3 6-2 |
| Claudio Mezzadri | d. | Thierry Tulasne | 6-3 7-5 |
| Thomas Muster | d. | Marian Vajda | 6-3 7-5 |
| Guillermo Perez Roldan | d. | Marcelo Filippini | 7-6(1) 6-3 |
| Goran Prpic | d. | Gilad Bloom | 4-6 6-4 6-4 |
| Christian Miniussi | d. | Renzo Furlan | 6-4 7-5 |
| Eduardo Masso | d. | Jan Gunnarsson | 6-3 6-3 |
| Andrei Medvedev | d. | Marc Rosset | 6-2 6-1 |
| Alberto Mancini | d. | Luiz Mattar | 6-3 7-6(5) |
| Horacio De La Pena | d. | Franco Davin | 7-6(5) 7-6(4) |
| Miguel Merz | d. | Patrick Baur | 3-6 7-6(5) 7-5 |
| Horst Skoff | d. | German Lopez | 6-2 6-0 |
| Carsten Arriens | d. | Omar Camporese | 6-3 6-4 |
| Jaime Oncins | d. | Juan Gisbert Jr | 6-4 7-5 |
| Veli Paloheimo | d. | Ronald Agenor | 7-6(5) 4-6 6-4 |
| Jordi Arrese | d. | Andrei Cherkasov | 6-4 4-6 6-1 |