Brasilia CH 1989 ATP
Final
| Winner | Loser | Score | |
|---|---|---|---|
| David Wheaton | d. | Dan Cassidy | 6-1 6-2 |
Semifinals
| Winner | Loser | Score | |
|---|---|---|---|
| Dan Cassidy | d. | Danilo Marcelino | 6-4 3-6 6-3 |
| David Wheaton | d. | Luiz Mattar | 6-4 6-3 |
Quarterfinals
| Winner | Loser | Score | |
|---|---|---|---|
| David Wheaton | d. | Ricardo Acuna | 7-6 7-5 |
| Dan Cassidy | d. | Alexandre Hocevar | 6-7 6-3 6-3 |
| Danilo Marcelino | d. | Ivan Kley | 6-4 7-5 |
| Luiz Mattar | d. | Patrick Baur | 6-4 2-6 6-3 |
Round of 16
| Winner | Loser | Score | |
|---|---|---|---|
| Dan Cassidy | d. | Kent Kinnear | 6-4 6-2 |
| Patrick Baur | d. | John Sobel | 6-3 6-4 |
| Alexandre Hocevar | d. | Fernando Roese | 6-3 6-3 |
| David Wheaton | d. | Martin Laurendeau | 6-4 1-6 6-2 |
| Ivan Kley | d. | Thomas Hogstedt | 6-2 6-2 |
| Danilo Marcelino | d. | Givaldo Barbosa | 6-4 6-3 |
| Ricardo Acuna | d. | Jorge Lozano | 6-4 6-1 |
| Luiz Mattar | d. | Chris Garner | 6-2 6-3 |
Round of 32
| Winner | Loser | Score | |
|---|---|---|---|
| David Wheaton | d. | Julio Goes | 6-3 7-5 |
| Fernando Roese | d. | Marcelo Saliola | 6-2 6-3 |
| Ivan Kley | d. | Francisco Yunis | 6-0 6-3 |
| Kent Kinnear | d. | Dacio Campos | 6-1 7-5 |
| Chris Garner | d. | Patrick McEnroe | 7-5 6-2 |
| Patrick Baur | d. | Marcelo Hennemann | 7-5 6-2 |
| Givaldo Barbosa | d. | Cary Cohenour | 6-3 6-2 |
| Ricardo Acuna | d. | Cesar Kist | 7-6 3-6 6-2 |
| Alexandre Hocevar | d. | Ned Caswell | 4-6 6-3 6-0 |
| John Sobel | d. | Bret Garnett | 6-4 5-7 6-4 |
| Martin Laurendeau | d. | Roberto Jabali | 6-1 7-6 |
| Thomas Hogstedt | d. | Ricardo Acioly | 6-4 6-2 |
| Danilo Marcelino | d. | Narc Rodrigues | 6-4 6-1 |
| Jorge Lozano | d. | Daniel Montes De Oca | 6-4 7-5 |
| Dan Cassidy | d. | Cassio Motta | 4-6 6-1 7-5 |
| Luiz Mattar | d. | Mauro Menezes | 6-3 6-3 |