| Singles | |
|---|---|
| 1989 BP National Championships | |
| 1988 Champion |
|
| Champion |
|
| Runner-up |
|
| Final score | 7–5, 6–1, 6–4 |
Ramesh Krishnan was the defending champion but lost in the first round to Patrick Baur.
Kelly Evernden won in the final 7–5, 6–1, 6–4 against Shuzo Matsuoka.
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.