1989 Italian Open – Women's singles
# 1989 Italian Open – Women's singles

Gabriela Sabatini was the defending champion and won in the final 6–2, 5–7, 6–4 against Arantxa Sánchez.

## Seeds

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated. The top eight seeds received a bye to the second round.

* Gabriela Sabatini (champion)
* Manuela Maleeva (third round)
* Helen Kelesi (third round)
* Arantxa Sánchez (final)
* Hana Mandlíková (third round)
* Sandra Cecchini (quarterfinals)
* Judith Wiesner (quarterfinals)
* Raffaella Reggi (quarterfinals)
* Terry Phelps (third round)
* Bettina Fulco (semifinals)
* Nicole Provis (first round)
* Isabelle Demongeot (third round)
* Barbara Paulus (third round)
* Nathalie Tauziat (semifinals)
* Niege Dias (second round)
* Ann Grossman (first round)

## 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 |
| - | - | - | - | - | - | - | - | - |
| 1 | Gabriela Sabatini | 6 | 6 | | | | | |
| 10 | Bettina Fulco | 3 | 1 | | | | | |
| 10 | Bettina Fulco | 3 | 1 | 1 | Gabriela Sabatini | 6 | 5 | 6 |
| | | | | 4 | Arantxa Sánchez | 2 | 7 | 4 |
| 4 | Arantxa Sánchez | 6 | 6 | 4 | Arantxa Sánchez | 2 | 7 | 4 |
| 14 | Nathalie Tauziat | 1 | 3 | | | | | |

### Top half

**Section 1**

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| | | | | | 1 | G Sabatini | 6 | 6 | | | | | | | | | | |
| Q | E Derly | 7 | 2 | 1 | | L Golarsa | 2 | 2 | | | | | | | | | | |
| | L Golarsa | 5 | 6 | 6 | | | | | | 1 | G Sabatini | 6 | 6 | 6 | | | | |
| | L Lapi | 7 | 7 | | | | | | | | L Lapi | 3 | 7 | 3 | | | | |
| | M Paz | 6 | 5 | | | L Lapi | 6 | 6 | | | | | | | | | | |
| | P Langrová | 6 | 6 | 6 | | P Langrová | 3 | 3 | | | | | | | | | | |
| 11 | N Provis | 7 | 3 | 0 | | | | | | | | | | | 1 | G Sabatini | 7 | 6 |
| 15 | N Dias | 6 | 6 | | | | | | | | | | | | 6 | S Cecchini | 5 | 1 |
| | D Van Rensburg | 2 | 1 | | 15 | N Dias | 0 | 3 | | | | | | | | | | |
| Q | J Tremelling | 6 | 4 | 6 | Q | J Tremelling | 6 | 6 | | | | | | | | | | |
| | J Halard | 4 | 6 | 4 | | | | | | Q | J Tremelling | 0 | 2 | | | | | |
| Q | L Corsato-Owsianka | 5 | 1 | | | | | | | 6 | S Cecchini | 6 | 6 | | | | | |
| | R McQuillan | 7 | 6 | | | R McQuillan | 6 | 5 | 5 | | | | | | | | | |
| | | | | | 6 | S Cecchini | 2 | 7 | 7 | | | | | | | | | |

**Section 2**

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| | | | | | 3 | H Kelesi | 6 | 6 | | | | | | | | | |
| | S Farina | 7 | 2 | 6 | | S Farina | 2 | 2 | | | | | | | | | |
| | N Guerrée | 6 | 6 | 2 | | | | | 3 | H Kelesi | 3 | 6 | 3 | | | | |
| Q | C Cohen | 6 | 6 | | | | | | 10 | B Fulco | 6 | 2 | 6 | | | | |
| LL | D Krajčovičová | 1 | 3 | | Q | C Cohen | 4 | 2 | | | | | | | | | |
| | L Field | 3 | 0 | | 10 | B Fulco | 6 | 6 | | | | | | | | | |
| 10 | B Fulco | 6 | 6 | | | | | | | | | | | 10 | B Fulco | 6 | 6 |
| 13 | B Paulus | 4 | 6 | 6 | | | | | | | | | | 8 | R Reggi | 4 | 2 |
| | O Tsarbopoulou | 6 | 1 | 1 | 13 | B Paulus | 6 | 6 | | | | | | | | | |
| | E Švíglerová | 4 | 3 | | | A Coetzer | 2 | 4 | | | | | | | | | |
| | A Coetzer | 6 | 6 | | | | | | 13 | B Paulus | 2 | 6 | | | | | |
| | S Wasserman | 6 | 1 | 6 | | | | | 8 | R Reggi | 6 | 7 | | | | | |
| Q | M-C Damas | 1 | 6 | 1 | | S Wasserman | 4 | 4 | | | | | | | | | |
| | | | | | 8 | R Reggi | 6 | 6 | | | | | | | | | |

### Bottom half

**Section 3**

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| | | | | | 5 | H Mandlíková | 6 | 6 | | | | | | | | | |
| | J Byrne | 7 | 6 | 3 | | L Tella | 3 | 0 | | | | | | | | | |
| | L Tella | 6 | 7 | 6 | | | | | 5 | H Mandlíková | 6 | 2 | r | | | | |
| | A Kanellopoulou | 7 | 2 | 6 | | | | | | S Goleš | 1 | 5 | | | | | |
| | N Jagerman | 5 | 6 | 2 | | A Kanellopoulou | 2 | 4 | | | | | | | | | |
| | S Goleš | 2 | 6 | 6 | | S Goleš | 6 | 6 | | | | | | | | | |
| 16 | A Grossman | 6 | 2 | 2 | | | | | | | | | | | S Goleš | 0 | 3 |
| 12 | I Demongeot | 6 | 5 | 6 | | | | | | | | | | 4 | A Sánchez | 6 | 6 |
| | N Iaccarino | 2 | 7 | 1 | 12 | I Demongeot | 6 | 6 | | | | | | | | | |
| | M Grossi | 6 | 7 | | | M Grossi | 4 | 1 | | | | | | | | | |
| | B Schultz | 1 | 5 | | | | | | 12 | I Demongeot | 2 | 2 | | | | | |
| | L Ferrando | 5 | 6 | 6 | | | | | 4 | A Sánchez | 6 | 6 | | | | | |
| Q | C Nozzoli | 7 | 2 | 1 | | L Ferrando | 5 | 1 | | | | | | | | | |
| | | | | | 4 | A Sánchez | 7 | 6 | | | | | | | | | |

**Section 4**

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| | | | | | 7 | J Wiesner | 6 | 7 | | | | | | | | | | | |
| | C Tanvier | 2 | 2 | | | J-A Faull | 3 | 6 | | | | | | | | | | | |
| | J-A Faull | 6 | 6 | | | | | | | 7 | J Wiesner | 6 | 7 | | | | | | |
| | L Garrone | 1 | 4 | | | | | | | 9 | T Phelps | 4 | 6 | | | | | | |
| | C Caverzasio | 6 | 6 | | | C Caverzasio | 4 | 1 | | | | | | | | | | | |
| | M Bollegraf | 4 | 4 | | 9 | T Phelps | 6 | 6 | | | | | | | | | | | |
| 9 | T Phelps | 6 | 6 | | | | | | | | | | | | 7 | J Wiesner | 6 | 2 | 2 |
| 14 | N Tauziat | 5 | 6 | 6 | | | | | | | | | | | 14 | N Tauziat | 1 | 6 | 6 |
| | A Dechaume | 7 | 1 | 1 | 14 | N Tauziat | 4 | 6 | 6 | | | | | | | | | | |
| | E Smylie | 0 | 1 | | | E Reinach | 6 | 3 | 0 | | | | | | | | | | |
| | E Reinach | 6 | 6 | | | | | | | 14 | N Tauziat | 2 | 6 | 6 | | | | | |
| | J Pospíšilová | 3 | 2 | | | | | | | 2 | M Maleeva | 6 | 3 | 0 | | | | | |
| Q | B Romanò | 6 | 6 | | Q | B Romanò | 3 | 2 | | | | | | | | | | | |
| | | | | | 2 | M Maleeva | 6 | 6 | | | | | | | | | | | |
