# 1991 Volvo Women's Open – Singles

In the first edition of the tournament, Yayuk Basuki won the title by defeating Naoko Sawamatsu 6–2, 6–2 in the final.

## Seeds

* Sabine Appelmans (first round, retired)
* Naoko Sawamatsu (final)
* Catarina Lindqvist (second round)
* Marianne Werdel (semifinals)
* Anne Minter (first round)
* Karin Kschwendt (quarterfinals)
* Monique Javer (quarterfinals)
* Sarah Loosemore (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

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| WC | Rika Hiraki | 6 | 1 | 2 | | | | |
| | Yayuk Basuki | 3 | 6 | 6 | | | | |
| | Yayuk Basuki | 3 | 6 | 6 | | Yayuk Basuki | 6 | 6 |
| | | | | | 2 | Naoko Sawamatsu | 2 | 2 |
| 4 | Marianne Werdel | 1 | 3 | | 2 | Naoko Sawamatsu | 2 | 2 |
| 2 | Naoko Sawamatsu | 6 | 6 | | | | | |

### 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | S Appelmans | 6 | 0 | 3$^r$ | | | | | | | | | | | | | | | |
| | K Radford | 1 | 6 | 5 | | K Radford | 3 | 1 | | | | | | | | | | | |
| WC | R Hiraki | 6$^4$ | 7 | 6 | WC | R Hiraki | 6 | 6 | | | | | | | | | | | |
| | S Wibowo | 7$^7$ | 5 | 1 | | | | | | WC | R Hiraki | 6 | 6 | | | | | | |
| | C Toleafoa | 7 | 2 | 1 | | | | | | 8 | S Loosemore | 0 | 2 | | | | | | |
| Q | A Jönsson | 5 | 6 | 6 | Q | A Jönsson | 6 | 2 | 3 | | | | | | | | | | |
| | M Oremans | 3 | 2 | | 8 | S Loosemore | 2 | 6 | 6 | | | | | | | | | | |
| 8 | S Loosemore | 6 | 6 | | | | | | | | | | | | WC | R Hiraki | 6 | 1 | 2 |
| 3 | C Lindqvist | 6 | 6$^6$ | 6 | | | | | | | | | | | | Y Basuki | 3 | 6 | 6 |
| Q | L Novelo | 3 | 7$^8$ | 0 | 3 | C Lindqvist | 4 | 2 | | | | | | | | | | | |
| | L Field | 2 | 5 | | | Y Basuki | 6 | 6 | | | | | | | | | | | |
| | Y Basuki | 6 | 7 | | | | | | | | Y Basuki | 5 | 6 | 6 | | | | | |
| | A Nishiya | 2 | 5 | | | | | | | 6 | K Kschwendt | 7 | 3 | 4 | | | | | |
| | N Miyagi | 6 | 7 | | | N Miyagi | 3 | 4 | | | | | | | | | | | |
| | M Kidowaki | 1 | 3 | | 6 | K Kschwendt | 6 | 6 | | | | | | | | | | | |
| 6 | K Kschwendt | 6 | 6 | | | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | A Minter | 1 | 5 | | | | | | | | | | | | | |
| | T Takagi | 6 | 7 | | | T Takagi | 4 | 3 | | | | | | | | |
| | M Miyauchi | 4 | 6 | 6 | | M Miyauchi | 6 | 6 | | | | | | | | |
| Q | E Okagawa | 6 | 1 | 3 | | | | | | M Miyauchi | 6$^3$ | 0 | | | | |
| | JA Faull | 7$^7$ | 4 | 6 | | | | | 4 | M Werdel | 7$^7$ | 6 | | | | |
| | P Vásquez | 6$^3$ | 6 | 1 | | JA Faull | 4 | 0 | | | | | | | | |
| Q | I Driehuis | 1 | 2 | | 4 | M Werdel | 6 | 6 | | | | | | | | |
| 4 | M Werdel | 6 | 6 | | | | | | | | | | 4 | M Werdel | 1 | 3 |
| 7 | M Javer | 6 | 7$^9$ | | | | | | | | | | 2 | N Sawamatsu | 6 | 6 |
| | A May | 1 | 6$^7$ | | 7 | M Javer | 6 | 6 | | | | | | | | |
| | M Endo | 2 | 3 | | | K Godridge | 2 | 0 | | | | | | | | |
| | K Godridge | 6 | 6 | | | | | | 7 | M Javer | 2 | 3 | | | | |
| WC | O Thampensri | 1 | 4 | | | | | | 2 | N Sawamatsu | 6 | 6 | | | | |
| | P Kamstra | 6 | 6 | | | P Kamstra | 6 | 0$^r$ | | | | | | | | |
| | N Pratt | 1 | 6 | 0 | 2 | N Sawamatsu | 4 | 5 | | | | | | | | |
| 2 | N Sawamatsu | 6 | 2 | 6 | | | | | | | | | | | | |