Oporto 1981 ATP
Final
| Winner | Loser | Score | |
|---|---|---|---|
| Jose Luis Clerc | d. | Raul Ramirez | 6-1 6-2 |
Semifinals
| Winner | Loser | Score | |
|---|---|---|---|
| Jose Luis Clerc | d. | Pavel Slozil | 6-3 6-2 |
| Raul Ramirez | d. | Gilles Moretton | 6-3 6-2 |
Quarterfinals
| Winner | Loser | Score | |
|---|---|---|---|
| Jose Luis Clerc | d. | Fernando Dalla Fontana | 6-1 6-1 |
| Pavel Slozil | d. | Diego Perez | 6-4 6-2 |
| Raul Ramirez | d. | Paolo Bertolucci | 2-6 6-0 6-4 |
| Gilles Moretton | d. | Patrick Proisy | 6-2 6-3 |
Round of 16
| Winner | Loser | Score | |
|---|---|---|---|
| Jose Luis Clerc | d. | Guillermo Aubone | 6-0 7-5 |
| Fernando Dalla Fontana | d. | Belus Prajoux | 7-6 6-1 |
| Pavel Slozil | d. | Antonio Zugarelli | 7-5 7-5 |
| Diego Perez | d. | Zeljko Franulovic | 6-3 6-3 |
| Paolo Bertolucci | d. | Billy Martin | 6-3 6-3 |
| Raul Ramirez | d. | Marko Ostoja | 1-6 6-3 7-5 |
| Patrick Proisy | d. | Fabrizio Fanucci | 7-6 6-2 |
| Gilles Moretton | d. | Adriano Panatta | 7-6 7-5 |
Round of 32
| Winner | Loser | Score | |
|---|---|---|---|
| Jose Luis Clerc | d. | Ben Mckown | 6-2 6-4 |
| Guillermo Aubone | d. | Hans Kary | 6-1 2-6 6-2 |
| Fernando Dalla Fontana | d. | Ben Testerman | 7-6 6-1 |
| Belus Prajoux | d. | Jaime Fillol | 6-4 1-6 6-4 |
| Pavel Slozil | d. | Patrizio Parrini | 6-3 7-5 |
| Antonio Zugarelli | d. | Jan Kodes | 6-2 6-0 |
| Zeljko Franulovic | d. | Eric Fromm | 6-2 7-5 |
| Diego Perez | d. | Rick Fagel | 6-3 7-5 |
| Paolo Bertolucci | d. | Ismail El Shafei | 7-6 6-2 |
| Billy Martin | d. | Jean Francois Caujolle | 6-4 6-2 |
| Marko Ostoja | d. | Alvaro Fillol | 6-1 6-3 |
| Raul Ramirez | d. | Ricardo Acuna | 6-3 1-6 7-5 |
| Fabrizio Fanucci | d. | John Alexander | 6-2 5-7 7-6 |
| Patrick Proisy | d. | Gustavo Guerrero | NA |
| Gilles Moretton | d. | Gianluca Rinaldini | 4-6 6-1 6-3 |
| Adriano Panatta | d. | Hans Simonsson | 6-4 7-6 |