# 1989 Stella Artois Indoor – Singles

Yannick Noah was the defending champion but lost in the second round to Slobodan Živojinović.
Boris Becker won in the final 6–1, 6–2 against Alexander Volkov.

## Seeds

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
* Boris Becker (champion)
* Miloslav Mečíř (first round)
* John McEnroe (semifinals)
* Jakob Hlasek (second round)
* Henri Leconte (first round)
* Yannick Noah (second round)
* Jonas Svensson (second round)
* n/a

## 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 | B Becker | 6 | 6 | 6 | | | | | | | | | | | | | | | | | | |
| | R Agénor | 7 | 2 | 1 | 1 | B Becker | 6 | 7 | | | | | | | | | | | | | | |
| | G Forget | 6 | 6 | 6 | | G Forget | 3 | 6 | | | | | | | | | | | | | | |
| | A Järryd | 7 | 3 | 4 | | | | | | 1 | B Becker | 7 | 7 | | | | | | | | | |
| | C Bergström | 6 | 6 | | | | | | | | C Bergström | 6 | 5 | | | | | | | | | |
| | P Kühnen | 4 | 4 | | | C Bergström | 6 | 2 | 6 | | | | | | | | | | | | | |
| | M Šrejber | 7 | 6 | | | M Šrejber | 3 | 6 | 4 | | | | | | | | | | | | | |
| LL | E Masso | 5 | 2 | | | | | | | | | | | 1 | B Becker | 6 | 6 | | | | | |
| 3 | J McEnroe | 6 | 6 | | | | | | | | | | | 3 | J McEnroe | 2 | 3 | | | | | |
| | C-U Steeb | 3 | 2 | | 3 | J McEnroe | 6 | 6 | | | | | | | | | | | | | | |
| | M Schapers | 6 | 6 | | | M Schapers | 2 | 3 | | | | | | | | | | | | | | |
| Q | D Engel | 4 | 4 | | | | | | | 3 | J McEnroe | 6 | 6 | | | | | | | | | |
| | W Masur | 6 | 1 | 6 | | | | | | Q | A Cherkasov | 2 | 2 | | | | | | | | | |
| | J Nyström | 1 | 6 | 1 | | W Masur | 6 | 7 | 6 | | | | | | | | | | | | | |
| Q | A Cherkasov | 7 | 4 | 6 | Q | A Cherkasov | 7 | 5 | 7 | | | | | | | | | | | | | |
| 5 | H Leconte | 6 | 6 | 3 | | | | | | | | | | | | | | | 1 | Boris Becker | 6 | 6 |
| 6 | Y Noah | 6 | 6 | 7 | | | | | | | | | | | | | | | | Alexander Volkov | 1 | 2 |
| | A Olhovskiy | 3 | 7 | 6 | 6 | Y Noah | 6 | 6 | | | | | | | | | | | | | | |
| | Y Doumbia | 6 | 3 | 4 | | S Živojinović | 7 | 7 | | | | | | | | | | | | | | |
| | S Živojinović | 3 | 6 | 6 | | | | | | | S Živojinović | 6 | 3 | | | | | | | | | |
| WC | G Ivanišević | 4 | 6 | 4 | | | | | | | A Volkov | 7 | 6 | | | | | | | | | |
| | A Volkov | 6 | 3 | 6 | | A Volkov | 7 | 7 | | | | | | | | | | | | | | |
| Q | M Ostoja | 6 | 1 | | 4 | J Hlasek | 6 | 5 | | | | | | | | | | | | | | |
| 4 | J Hlasek | 7 | 6 | | | | | | | | | | | | A Volkov | 6 | 2 | 7 | | | | |
| 7 | J Svensson | 6 | 6 | | | | | | | | | | | | E Jelen | 2 | 6 | 6 | | | | |
| WC | M Narducci | 4 | 2 | | 7 | J Svensson | 4 | 0 | | | | | | | | | | | | | | |
| | M Gustafsson | 4 | 2 | | | E Jelen | 6 | 6 | | | | | | | | | | | | | | |
| | E Jelen | 6 | 6 | | | | | | | | E Jelen | 6 | 6 | | | | | | | | | |
| Q | T Carbonell | 3 | 2 | | | | | | | | P Canè | 1 | 2 | | | | | | | | | |
| | P Canè | 6 | 6 | | | P Canè | 6 | 6 | | | | | | | | | | | | | | |
| WC | O Camporese | 6 | 7 | | WC | O Camporese | 4 | 3 | | | | | | | | | | | | | | |
| 2 | M Mečíř | 4 | 6 | | | | | | | | | | | | | | | | | | | |