# 1991 St. Petersburg Open – Singles

Leila Meskhi was the defending champion, but chose to compete at Bayotte in the same week.
Larisa Savchenko-Neiland won the title by defeating Barbara Rittner 3–6, 6–3, 6–4 in the final.

## Seeds

* Elena Brioukhovets (quarterfinals)
* Natalia Medvedeva (second round)
* Barbara Rittner (final)
* Isabelle Demongeot (quarterfinals)
* Larisa Savchenko-Neiland (champion)
* Donna Faber (first round)
* Jo Durie (semifinals)
* Petra Ritter (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

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| 5 | Larisa Savchenko-Neiland | 6 | 6 | | | | | | |
| 7 | Jo Durie | 4 | 4 | | | | | | |
| 7 | Jo Durie | 4 | 4 | | 5 | Larisa Savchenko-Neiland | 3 | 6 | 6 |
| | | | | | 3 | Barbara Rittner | 6 | 3 | 4 |
| 3 | Barbara Rittner | 3 | 6 | 6 | 3 | Barbara Rittner | 6 | 3 | 4 |
| | Katja Oeljeklaus | 6 | 3 | 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 | E Brioukhovets | 6 | 6 | | | | | | | | | | | | | | |
| Q | I Driehuis | 2 | 3 | | 1 | E Brioukhovets | w/o | | | | | | | | | | |
| | M Ekstrand | 4 | 2 | | Q | D Monami | | | | | | | | | | | |
| Q | D Monami | 6 | 6 | | | | | | | 1 | E Brioukhovets | 0 | 3 | | | | |
| | S Smith | 6 | 4 | 4 | | | | | | 5 | L Savchenko-Neiland | 6 | 6 | | | | |
| | N Miyagi | 2 | 6 | 6 | | N Miyagi | 4 | 4 | | | | | | | | | |
| | M Živec-Škulj | 7 | 4 | 1 | 5 | L Savchenko-Neiland | 6 | 6 | | | | | | | | | |
| 5 | L Savchenko-Neiland | 5 | 6 | 6 | | | | | | | | | | 5 | L Savchenko-Neiland | 6 | 6 |
| 4 | I Demongeot | 7 | 7 | | | | | | | | | | | 7 | J Durie | 4 | 4 |
| | E Maniokova | 6 | 5 | | 4 | I Demongeot | 6 | 6 | | | | | | | | | |
| | C Dahlman | 6 | 4 | 7 | | C Dahlman | 4 | 4 | | | | | | | | | |
| | P Thorén | 1 | 6 | 5 | | | | | | 4 | I Demongeot | 2 | 2 | | | | |
| | S Komleva | 4 | 3 | | | | | | | 7 | J Durie | 6 | 6 | | | | |
| Q | B Reinstadler | 6 | 6 | | Q | B Reinstadler | 0 | 7 | 2 | | | | | | | | |
| | A Smashnova | 1 | 4 | | 7 | J Durie | 6 | 6 | 6 | | | | | | | | |
| 7 | J Durie | 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 | Semifinals |
| 8 | P Ritter | 2 | 6 | 6 | | | | | | | | | | | | | | | |
| | L Golarsa | 6 | 2 | 3 | 8 | P Ritter | 7 | 1 | 5 | | | | | | | | | | |
| | S Testud | 2 | 6 | 6 | | S Testud | 5 | 6 | 7 | | | | | | | | | | |
| | B Cordwell | 6 | 1 | 4 | | | | | | | S Testud | 6 | 2 | | | | | | |
| | M Strandlund | 3 | 4 | | | | | | | 3 | B Rittner | 7 | 6 | | | | | | |
| | B Mulej | 6 | 6 | | | B Mulej | 6 | 3 | 1 | | | | | | | | | | |
| | S Dopfer | 2 | 3 | | 3 | B Rittner | 4 | 6 | 6 | | | | | | | | | | |
| 3 | B Rittner | 6 | 6 | | | | | | | | | | | | 3 | B Rittner | 3 | 6 | 6 |
| 6 | D Faber | 0 | 6 | 5 | | | | | | | | | | | | K Oeljeklaus | 6 | 3 | 4 |
| | A Henricksson | 6 | 4 | 7 | | A Henricksson | 6 | 6 | | | | | | | | | | | |
| Q | I Berger | 6 | 6 | | Q | I Berger | 1 | 4 | | | | | | | | | | | |
| | S Loosemore | 4 | 2 | | | | | | | | A Henricksson | 7 | 3 | 3 | | | | | |
| | S Frankl | 2 | 6 | 6 | | | | | | | K Oeljeklaus | 6 | 6 | 6 | | | | | |
| | K Oeljeklaus | 6 | 3 | 7 | | K Oeljeklaus | 3 | 6 | 6 | | | | | | | | | | |
| | N van Lottum | 2 | 2 | | 2 | N Medvedeva | 6 | 3 | 1 | | | | | | | | | | |
| 2 | N Medvedeva | 6 | 6 | | | | | | | | | | | | | | | | |