Davis Cup G1 R1: THA vs KOR 1983 ATP
Round robin
| Winner | Loser | Score | |
|---|---|---|---|
| Andres Gomez | d. | Glenn Michibata | 6-2 6-4 3-6 6-2 |
| Ricardo Ycaza | d. | John Picken | 6-4 2-6 6-0 6-4 |
| John Picken | d. | Martin Aguirre | 6-1 6-0 |
| Raul Antonio Viver | d. | Glenn Michibata | 6-4 6-4 |
| Winner | Loser | Score | |
|---|---|---|---|
| Andres Gomez | d. | Glenn Michibata | 6-2 6-4 3-6 6-2 |
| Ricardo Ycaza | d. | John Picken | 6-4 2-6 6-0 6-4 |
| John Picken | d. | Martin Aguirre | 6-1 6-0 |
| Raul Antonio Viver | d. | Glenn Michibata | 6-4 6-4 |