# 1989 Swiss Indoors – Singles

Stefan Edberg was the defending champion, but lost in the final to Jim Courier. The score was 7–6, 3–6, 2–6, 6–0, 7–5 in the final.

## Seeds

* Stefan Edberg (final)
* Jakob Hlasek (second round)
* Jay Berger (first round)
* Aaron Krickstein (second round)
* Jimmy Connors (semifinals)
* Andrei Chesnokov (first round)
* Amos Mansdorf (first round)
* Andrés Gómez (semifinals)

## 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

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final | Final | Final |
| 1 | Stefan Edberg | 6 | 7 | | | | | | | |
| 5/WC | Jimmy Connors | 1 | 5 | | | | | | | |
| 5/WC | Jimmy Connors | 1 | 5 | 1 | Stefan Edberg | 6 | 6 | 6 | 0 | 5 |
| | | | | | Jim Courier | 7 | 3 | 2 | 6 | 7 |
| | Jim Courier | 7 | 6 | | Jim Courier | 7 | 3 | 2 | 6 | 7 |
| 8 | Andrés Gómez | 6 | 4 | | | | | | | |

### Top half

| 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 |
| 1 | S Edberg | 3 | 7 | 6 | | | | | | | | | | | | | |
| | A Cherkasov | 6 | 6 | 1 | 1 | S Edberg | 6 | 6 | | | | | | | | | |
| | J Potier | 6 | 6 | 2 | | A Volkov | 2 | 4 | | | | | | | | | |
| | A Volkov | 7 | 4 | 6 | | | | | | 1 | S Edberg | 7 | 6 | | | | |
| | J Svensson | 6 | 6 | | | | | | | Q | O Delaître | 6 | 1 | | | | |
| Q | M Bahrami | 1 | 2 | | | J Svensson | 7 | 4 | 5 | | | | | | | | |
| Q | O Delaître | 6 | 6 | | Q | O Delaître | 6 | 6 | 7 | | | | | | | | |
| 7 | A Mansdorf | 4 | 4 | | | | | | | | | | | 1 | S Edberg | 6 | 7 |
| 3 | J Berger | 1 | 3 | | | | | | | | | | | 5/WC | J Connors | 1 | 5 |
| | O Camporese | 6 | 6 | | | O Camporese | 6 | 6 | | | | | | | | | |
| | M Stich | 6 | 5 | 3 | | M Schapers | 4 | 4 | | | | | | | | | |
| | M Schapers | 3 | 7 | 6 | | | | | | | O Camporese | 4 | 3 | | | | |
| | R Agénor | 2 | 2 | | | | | | | 5/WC | J Connors | 6 | 6 | | | | |
| | J Gunnarsson | 6 | 6 | | | J Gunnarsson | 4 | 2 | | | | | | | | | |
| | M Tauson | 3 | 1 | | 5/WC | J Connors | 6 | 6 | | | | | | | | | |
| 5/WC | J Connors | 6 | 6 | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | A Chesnokov | 4 | 5 | | | | | | | | | | | | | | | |
| | P Lundgren | 6 | 7 | | | P Lundgren | 2 | 2 | | | | | | | | | | |
| Q | É Winogradsky | 6 | 7 | 5 | | M Filippini | 6 | 6 | | | | | | | | | | |
| | M Filippini | 7 | 5 | 7 | | | | | | | M Filippini | 7 | 2 | 4 | | | | |
| | M Gustafsson | 3 | 6 | | | | | | | | J Courier | 5 | 6 | 6 | | | | |
| | J Courier | 6 | 7 | | | J Courier | 6 | 2 | 6 | | | | | | | | | |
| | G Pérez Roldán | 5 | 1 | | 4 | A Krickstein | 4 | 6 | 2 | | | | | | | | | |
| 4 | A Krickstein | 7 | 6 | | | | | | | | | | | | | J Courier | 7 | 6 |
| 8 | A Gómez | 6 | 6 | | | | | | | | | | | | 8 | A Gómez | 6 | 4 |
| WC | M Rosset | 3 | 3 | | 8 | A Gómez | 6 | 6 | 7 | | | | | | | | | |
| WC | C Mezzadri | 4 | 6 | 1 | | M Šrejber | 7 | 4 | 6 | | | | | | | | | |
| | M Šrejber | 6 | 3 | 6 | | | | | | 8 | A Gómez | 6 | 7 | | | | | |
| | G Ivanišević | 7 | 6 | | | | | | | | G Ivanišević | 3 | 6 | | | | | |
| Q | P Baur | 6 | 2 | | | G Ivanišević | 4 | 6 | 7 | | | | | | | | | |
| | R Krishnan | 3 | 6 | | 2 | J Hlasek | 6 | 3 | 5 | | | | | | | | | |
| 2 | J Hlasek | 6 | 7 | | | | | | | | | | | | | | | |