Buzios 1989 ATP
Final
| Winner | Loser | Score | |
|---|---|---|---|
| Luiz Mattar | d. | Martin Jaite | 6-4 5-7 6-4 |
Semifinals
| Winner | Loser | Score | |
|---|---|---|---|
| Luiz Mattar | d. | Cassio Motta | 6-4 6-3 |
| Martin Jaite | d. | Todd Witsken | 4-6 6-4 6-4 |
Quarterfinals
| Winner | Loser | Score | |
|---|---|---|---|
| Luiz Mattar | d. | Thomas Hogstedt | 6-4 6-4 |
| Cassio Motta | d. | Eduardo Bengoechea | 5-7 6-4 6-4 |
| Martin Jaite | d. | Guillermo Rivas | 6-1 6-3 |
| Todd Witsken | d. | Horacio De La Pena | 7-6 6-1 |
Round of 16
| Winner | Loser | Score | |
|---|---|---|---|
| Luiz Mattar | d. | Peter Doohan | 6-3 6-1 |
| Thomas Hogstedt | d. | Roberto Jabali | 7-5 6-3 |
| Eduardo Bengoechea | d. | Pedro Rebolledo | 6-2 6-2 |
| Cassio Motta | d. | Ivan Kley | 6-2 6-4 |
| Guillermo Rivas | d. | Marcelo Hennemann | 6-3 6-4 |
| Martin Jaite | d. | Fernando Roese | 6-4 6-4 |
| Todd Witsken | d. | Claudio Mezzadri | 6-4 6-3 |
| Horacio De La Pena | d. | Patrick Baur | 6-2 7-6 |
Round of 32
| Winner | Loser | Score | |
|---|---|---|---|
| Luiz Mattar | d. | Jaime Oncins | 6-1 3-6 3-0 RET |
| Peter Doohan | d. | John Sobel | 6-1 4-6 6-4 |
| Thomas Hogstedt | d. | Francisco Yunis | 6-4 7-5 |
| Roberto Jabali | d. | Tim Wilkison | 6-3 1-6 7-6 |
| Eduardo Bengoechea | d. | Mauro Menezes | 6-2 6-2 |
| Pedro Rebolledo | d. | Ricardo Acuna | 6-2 6-3 |
| Ivan Kley | d. | Marcelo Ingaramo | 7-6 6-1 |
| Cassio Motta | d. | Alexandre Hocevar | 6-2 5-7 6-2 |
| Marcelo Hennemann | d. | Javier Frana | 7-5 7-5 |
| Guillermo Rivas | d. | Danilo Marcelino | 3-6 7-6 6-4 |
| Fernando Roese | d. | Roberto Arguello | 1-6 7-6 6-3 |
| Martin Jaite | d. | Kent Kinnear | 6-7 7-5 7-5 |
| Todd Witsken | d. | Dan Cassidy | 7-5 4-6 7-5 |
| Claudio Mezzadri | d. | Cesar Kist | 6-3 6-4 |
| Patrick Baur | d. | Jorge Lozano | 6-3 6-4 |
| Horacio De La Pena | d. | Francisco Pinto | 6-4 6-0 |