# 1989 DHL Open – Singles

Monique Javer was the defending champion but lost in the semifinals to Akiko Kijimuta.
Belinda Cordwell won in the final 6–1, 6–0 against Kijimuta.

## Seeds

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
* Anne Minter (second round)
* Belinda Cordwell (champion)
* Ann Henricksson (first round)
* Sandra Wasserman (semifinals)
* Monique Javer (semifinals)
* Louise Allen (quarterfinals)
* Marianne Werdel (first round)
* Iwona Kuczyńska (quarterfinals)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking
| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | A Minter | 4 | 6 | 6 | | | | | | | | | | | | | | | | | | |
| Q | A Grousbeck | 6 | 4 | 4 | 1 | A Minter | 1 | 4 | | | | | | | | | | | | | | |
| | A Kijimuta | 6 | 7 | | | A Kijimuta | 6 | 6 | | | | | | | | | | | | | | |
| | K Po | 2 | 6 | | | | | | | | A Kijimuta | 6 | 6 | | | | | | | | | |
| | B Herr | 6 | 1 | 6 | | | | | | 8 | I Kuczyńska | 4 | 4 | | | | | | | | | |
| | M Yanagi | 2 | 6 | 7 | | M Yanagi | 5 | 1 | | | | | | | | | | | | | | |
| Q | K Kschwendt | 6 | 2 | | 8 | I Kuczyńska | 7 | 6 | | | | | | | | | | | | | | |
| 8 | I Kuczyńska | 7 | 6 | | | | | | | | | | | | A Kijimuta | 6 | 4 | 6 | | | | |
| 3 | A Henricksson | 7 | 6 | 4 | | | | | | | | | | 5 | M Javer | 3 | 6 | 0 | | | | |
| | E Krapl | 5 | 7 | 6 | | E Krapl | 6 | 6 | | | | | | | | | | | | | | |
| | M Jaggard | 6 | 6 | | | M Jaggard | 2 | 1 | | | | | | | | | | | | | | |
| | M Pawlik | 2 | 2 | | | | | | | | E Krapl | 4 | 3 | | | | | | | | | |
| | A Nishiya | 2 | 4 | | | | | | | 5 | M Javer | 6 | 6 | | | | | | | | | |
| | L Field | 6 | 6 | | | L Field | 2 | 7 | 3 | | | | | | | | | | | | | |
| | A Hobbs | 4 | 0 | | 5 | M Javer | 6 | 5 | 6 | | | | | | | | | | | | | |
| 5 | M Javer | 6 | 6 | | | | | | | | | | | | | | | | | Akiko Kijimuta | 1 | 0 |
| 7 | M Werdel | 4 | 4 | | | | | | | | | | | | | | | | 2 | Belinda Cordwell | 6 | 6 |
| | J Hetherington | 6 | 6 | | | J Hetherington | 7 | 5 | 0 | | | | | | | | | | | | | |
| | A Devries | 4 | 7 | 6 | | A Devries | 6 | 7 | 6 | | | | | | | | | | | | | |
| | N Miyagi | 6 | 5 | 2 | | | | | | | A Devries | 4 | 4 | | | | | | | | | |
| Q | M Kidowaki | 6 | 6 | | | | | | | 4 | S Wasserman | 6 | 6 | | | | | | | | | |
| | J Jonerup | 4 | 0 | | Q | M Kidowaki | 3 | 7 | 3 | | | | | | | | | | | | | |
| | H Witvoet | 3 | 4 | | 4 | S Wasserman | 6 | 6 | 6 | | | | | | | | | | | | | |
| 4 | S Wasserman | 6 | 6 | | | | | | | | | | | 4 | S Wasserman | 3 | 5 | | | | | |
| 6 | L Allen | 5 | 7 | 6 | | | | | | | | | | 2 | B Cordwell | 6 | 7 | | | | | |
| | C Dahlman | 7 | 6 | 0 | 6 | L Allen | 6 | 6 | | | | | | | | | | | | | | |
| | L-A Eldredge | 6 | 6 | | | L-A Eldredge | 0 | 3 | | | | | | | | | | | | | | |
| | E Smylie | 1 | 3 | | | | | | | 6 | L Allen | 2 | 1 | | | | | | | | | |
| | C Bakkum | 6 | 5 | 6 | | | | | | 2 | B Cordwell | 6 | 6 | | | | | | | | | |
| | L O'Neill | 3 | 7 | 2 | | C Bakkum | 2 | 3 | | | | | | | | | | | | | | |
| Q | S Appelmans | 2 | 5 | | 2 | B Cordwell | 6 | 6 | | | | | | | | | | | | | | |
| 2 | B Cordwell | 6 | 7 | | | | | | | | | | | | | | | | | | | |