# 1989 Spanish Open – Singles

Niege Dias was the defending champion but lost in the second round to Tine Scheuer-Larsen.
Arantxa Sánchez won in the final 6–2, 5–7, 6–1 against Helen Kelesi.

## Seeds

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
* Helen Kelesi (final)
* Arantxa Sánchez (champion)
* Jana Novotná (semifinals)
* Sylvia Hanika (quarterfinals)
* Raffaella Reggi (quarterfinals)
* Judith Wiesner (first round)
* Barbara Paulus (second round)
* Niege Dias (second 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
| 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 | Semifinals | Final | Final | Final | Final | Final |
| 1 | H Kelesi | 6 | 6 | | | | | | | | | | | | | | | | | | | | | |
| | I Varas | 2 | 3 | | 1 | H Kelesi | 6 | 3 | 6 | | | | | | | | | | | | | | | |
| | K Quentrec | 2 | 2 | | | L Golarsa | 1 | 6 | 1 | | | | | | | | | | | | | | | |
| | L Golarsa | 6 | 6 | | | | | | | 1 | H Kelesi | 6 | 4 | 6 | | | | | | | | | | |
| | F Bonsignori | 4 | 6 | | | | | | | 5 | R Reggi | 4 | 6 | 3 | | | | | | | | | | |
| Q | S Isidori | 6 | 7 | | Q | S Isidori | 1 | 4 | | | | | | | | | | | | | | | | |
| | A Villagrán | 4 | 6 | 3 | 5 | R Reggi | 6 | 6 | | | | | | | | | | | | | | | | |
| 5 | R Reggi | 6 | 2 | 6 | | | | | | | | | | | 1 | H Kelesi | 4 | 6 | 6 | | | | | |
| 3 | J Novotná | 6 | 6 | | | | | | | | | | | | 3 | J Novotná | 6 | 4 | 2 | | | | | |
| | N Guerrée | 2 | 4 | | 3 | J Novotná | 7 | 7 | | | | | | | | | | | | | | | | |
| Q | P Ritter | 3 | 3 | | | J Halard | 6 | 5 | | | | | | | | | | | | | | | | |
| | J Halard | 6 | 6 | | | | | | | 3 | J Novotná | 6 | 6 | | | | | | | | | | | |
| | T Scheuer-Larsen | 6 | 6 | | | | | | | | T Scheuer-Larsen | 2 | 1 | | | | | | | | | | | |
| | N Jagerman | 3 | 4 | | | T Scheuer-Larsen | 6 | 6 | | | | | | | | | | | | | | | | |
| | S Meier | 7 | 3 | 1 | 8 | N Dias | 2 | 4 | | | | | | | | | | | | | | | | |
| 8 | N Dias | 6 | 6 | 6 | | | | | | | | | | | | | | | | 1 | Helen Kelesi | 2 | 7 | 1 |
| 7 | B Paulus | 6 | 2 | 6 | | | | | | | | | | | | | | | | 2 | Arantxa Sánchez | 6 | 5 | 6 |
| | A Vieira | 3 | 6 | 1 | 7 | B Paulus | 6 | 1 | 2 | | | | | | | | | | | | | | | |
| | A Dechaume | 2 | 7 | 4 | Q | E Švíglerová | 3 | 6 | 6 | | | | | | | | | | | | | | | |
| Q | E Švíglerová | 6 | 6 | 6 | | | | | | Q | E Švíglerová | 2 | 6 | 4 | | | | | | | | | | |
| | S Hack | 6 | 6 | | | | | | | 4 | S Hanika | 6 | 3 | 2/r | | | | | | | | | | |
| Q | J Souto | 2 | 1 | | | S Hack | 3 | 3 | | | | | | | | | | | | | | | | |
| | M Paz | 3 | 7 | 6 | 4 | S Hanika | 6 | 6 | | | | | | | | | | | | | | | | |
| 4 | S Hanika | 6 | 6 | 7 | | | | | | | | | | | Q | E Švíglerová | 4 | 3 | | | | | | |
| 6 | J Wiesner | 6 | 2 | 3 | | | | | | | | | | | 2 | A Sánchez | 6 | 6 | | | | | | |
| | B Romanò | 3 | 6 | 6 | | B Romanò | 6 | 6 | 6 | | | | | | | | | | | | | | | |
| | C Suire | 2 | 3 | | | S La Fratta | 2 | 7 | 2 | | | | | | | | | | | | | | | |
| | S La Fratta | 6 | 6 | | | | | | | | B Romanò | 4 | 1 | | | | | | | | | | | |
| | C Tessi | 5 | 2 | | | | | | | 2 | A Sánchez | 6 | 6 | | | | | | | | | | | |
| | V Martinek | 7 | 6 | | | V Martinek | 1 | 2 | | | | | | | | | | | | | | | | |
| | S Auer | 2 | 3 | | 2 | A Sánchez | 6 | 6 | | | | | | | | | | | | | | | | |
| 2 | A Sánchez | 6 | 6 | | | | | | | | | | | | | | | | | | | | | |