ATP 250 · 1991-07-29 · draw of 32
San Marino 1991
ClayFinal
| 🇦🇷 Guillermo Perez-Roldan | d. | 🇫🇷 Frederic Fontang | 6-3 6-1 | H2H |
Semifinals
| 🇫🇷 Frederic Fontang | d. | 🇦🇷 Roberto Azar | 6-2 6-2 | H2H |
| 🇦🇷 Guillermo Perez-Roldan | d. | 🇮🇹 Renzo Furlan | 6-2 6-2 | H2H |
Quarterfinals
| 🇫🇷 Frederic Fontang | d. | 🇨🇭 Claudio Mezzadri | 6-4 6-0 | H2H |
| 🇦🇷 Roberto Azar | d. | 🇸🇪 Nicklas Kulti | 3-6 7-5 6-4 | H2H |
| 🇮🇹 Renzo Furlan | d. | 🇦🇷 Franco Davin | 6-2 6-3 | H2H |
| 🇦🇷 Guillermo Perez-Roldan | d. | 🇪🇸 Carlos Costa | 5-7 6-2 6-1 | H2H |
Round of 16
| 🇫🇷 Frederic Fontang | d. | 🇪🇸 Jordi Arrese | 6-3 6-0 | H2H |
| 🇨🇭 Claudio Mezzadri | d. | 🇵🇹 Nuno Marques | 6-3 6-3 | H2H |
| 🇸🇪 Nicklas Kulti | d. | 🇪🇸 Marcos Aurelio Gorriz | 6-3 6-2 | H2H |
| 🇦🇷 Roberto Azar | d. | 🇦🇷 Daniel Orsanic | 6-4 2-6 6-4 | H2H |
| 🇮🇹 Renzo Furlan | d. | 🇮🇹 Paolo Pambianco | 6-4 6-2 | H2H |
| 🇦🇷 Franco Davin | d. | 🇮🇹 Paolo Cane | 7-6(2) 7-5 | H2H |
| 🇪🇸 Carlos Costa | d. | 🇨🇿 Libor Nemecek | 6-2 6-2 | H2H |
| 🇦🇷 Guillermo Perez-Roldan | d. | 🇳🇱 Menno Oosting | 2-6 6-0 7-6(4) | H2H |
Round of 32
| 🇪🇸 Jordi Arrese | d. | 🇨🇱 Pedro Rebolledo | 5-7 6-2 6-2 | H2H |
| 🇫🇷 Frederic Fontang | d. | 🇷🇴 Mihnea-Ion Nastase | 6-3 6-4 | H2H |
| 🇨🇭 Claudio Mezzadri | d. | 🇮🇹 Mario Visconti | 7-6(3) 6-3 | H2H |
| 🇵🇹 Nuno Marques | d. | 🇦🇷 Marcelo Ingaramo | 6-3 7-5 | H2H |
| 🇸🇪 Nicklas Kulti | d. | 🇺🇸 John Sobel | 6-1 6-1 | H2H |
| 🇪🇸 Marcos Aurelio Gorriz | d. | 🇨🇿 Tomas Anzari | 6-4 6-2 | H2H |
| 🇦🇷 Daniel Orsanic | d. | 🇨🇿 Vaclav Roubicek | 6-2 6-2 | H2H |
| 🇦🇷 Roberto Azar | d. | 🇮🇹 Massimo Cierro | 6-3 6-1 | H2H |
| 🇮🇹 Renzo Furlan | d. | 🇦🇷 Christian Miniussi | 6-3 6-1 | H2H |
| 🇮🇹 Paolo Pambianco | d. | 🇨🇿 Slava Dosedel | 7-6(2) 4-6 6-2 | H2H |
| 🇮🇹 Paolo Cane | d. | 🇵🇹 Joao Cunha-Silva | 7-6(5) 6-3 | H2H |
| 🇦🇷 Franco Davin | d. | 🇮🇹 Massimo Ardinghi | 6-1 6-1 | H2H |
| 🇪🇸 Carlos Costa | d. | 🇪🇸 Jose Francisco Altur | 6-4 7-6(5) | H2H |
| 🇨🇿 Libor Nemecek | d. | 🇪🇸 Fernando Luna | 6-2 6-1 | H2H |
| 🇳🇱 Menno Oosting | d. | 🇫🇮 Olli Rahnasto | 6-0 6-1 | H2H |
| 🇦🇷 Guillermo Perez-Roldan | d. | 🇺🇾 Diego Perez | 6-0 6-1 | H2H |