Buenos Aires 1981 ATP
Final
| Winner | Loser | Score | |
|---|---|---|---|
| Ivan Lendl | d. | Guillermo Vilas | 6-1 6-2 |
Semifinals
| Winner | Loser | Score | |
|---|---|---|---|
| Ivan Lendl | d. | Pedro Rebolledo | 6-4 6-4 |
| Guillermo Vilas | d. | Andreas Maurer | 6-2 6-2 |
Quarterfinals
| Winner | Loser | Score | |
|---|---|---|---|
| Ivan Lendl | d. | Diego Perez | 6-1 6-0 |
| Pedro Rebolledo | d. | Andres Gomez | 7-5 6-1 |
| Andreas Maurer | d. | Juan Aguilera | 5-7 7-5 7-5 |
| Guillermo Vilas | d. | Rolf Gehring | 7-5 6-0 |
Round of 16
| Winner | Loser | Score | |
|---|---|---|---|
| Ivan Lendl | d. | Manuel Orantes | 6-4 6-0 |
| Diego Perez | d. | Jose Luis Damiani | 2-6 6-2 6-4 |
| Pedro Rebolledo | d. | Ricardo Ycaza | 6-1 6-1 |
| Andres Gomez | d. | Jose Lopez Maeso | 7-5 6-2 |
| Andreas Maurer | d. | Jose Higueras | 6-3 6-1 |
| Juan Aguilera | d. | Hans Gildemeister | 2-6 6-0 7-5 |
| Rolf Gehring | d. | Jaime Fillol | 7-6 7-6 |
| Guillermo Vilas | d. | Roberto Arguello | 6-4 7-5 |
Round of 32
| Winner | Loser | Score | |
|---|---|---|---|
| Ivan Lendl | d. | Angel Gimenez | 6-3 6-4 |
| Manuel Orantes | d. | Marcos Hocevar | 6-2 6-3 |
| Diego Perez | d. | Hugo Roverano | 6-3 6-3 |
| Jose Luis Damiani | d. | Pablo Arraya | 6-2 7-5 |
| Pedro Rebolledo | d. | Victor Pecci | 5-7 6-3 6-1 |
| Ricardo Ycaza | d. | Eduardo Bengoechea | 6-4 6-4 |
| Jose Lopez Maeso | d. | Guillermo Aubone | 6-4 7-5 |
| Andres Gomez | d. | Belus Prajoux | 6-1 6-2 |
| Jose Higueras | d. | Gabriel Urpi | 6-2 3-6 6-4 |
| Andreas Maurer | d. | Klaus Eberhard | 1-6 6-1 7-5 |
| Juan Aguilera | d. | Joao Soares | 6-1 6-2 |
| Hans Gildemeister | d. | Fernando Luna | 6-4 6-7 6-0 |
| Rolf Gehring | d. | Bernard Boileau | 1-6 6-3 6-4 |
| Jaime Fillol | d. | Francisco Gonzalez | 6-2 6-3 |
| Roberto Arguello | d. | Gustavo Tiberti | 6-2 6-3 |
| Guillermo Vilas | d. | Ricardo Cano | 6-4 7-6 |