# 1991 Volvo San Marino Open – Singles

In the first edition of the tournament, Katia Piccolini won the title by defeating Silvia Farina 6–2, 6–3 in the final.

## Seeds

* Raffaella Reggi (quarterfinals)
* Katia Piccolini (champion)
* Carrie Cunningham (quarterfinals)
* Sabine Hack (quarterfinals)
* Laura Garrone (second round)
* Mercedes Paz (second round)
* Cristina Tessi (second round)
* Csilla Bartos (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 | Final | Final | Final | Final |
| | Silvia Farina | 6 | 7$^7$ | | | | |
| | Elena Pampoulova-Wagner | 2 | 6$^5$ | | | | |
| | Elena Pampoulova-Wagner | 2 | 6$^5$ | | Silvia Farina | 2 | 3 |
| | | | | 2 | Katia Piccolini | 6 | 6 |
| | Denisa Szabová | 2 | 1 | 2 | Katia Piccolini | 6 | 6 |
| 2 | Katia Piccolini | 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 | Semifinals | Semifinals | Semifinals |
| 1 | R Reggi | 6 | 6 | | | | | | | | | | | | | |
| | N Housset | 3 | 3 | | 1 | R Reggi | 7$^9$ | 6 | | | | | | | | |
| | S Rottier | 2 | 0$^r$ | | | S Dopfer | 6$^7$ | 1 | | | | | | | | |
| | S Dopfer | 6 | 1 | | | | | | | 1 | R Reggi | 1 | 5 | | | |
| LL | L Jachia | 6 | 1 | 2 | | | | | | | S Farina | 6 | 7 | | | |
| | S Farina | 3 | 6 | 6 | | S Farina | 6 | 6 | | | | | | | | |
| | F Romano | 4 | 1$^r$ | | 7 | C Tessi | 2 | 1 | | | | | | | | |
| 7 | C Tessi | 6 | 1 | | | | | | | | | | | S Farina | 6 | 7$^7$ |
| 4 | S Hack | 7 | 6 | | | | | | | | | | | E Pampoulova-Wagner | 2 | 6$^5$ |
| | S Frankl | 5 | 2 | | 4 | S Hack | 6 | 6 | | | | | | | | |
| LL | A Nishiya | 4 | 3 | | | A Földényi | 2 | 1 | | | | | | | | |
| | A Földényi | 6 | 6 | | | | | | | 4 | S Hack | 2 | 0$^r$ | | | |
| | E Pampoulova-Wagner | 6 | 6 | | | | | | | | E Pampoulova-Wagner | 6 | 2 | | | |
| | L Field | 1 | 3 | | | E Pampoulova-Wagner | 2 | 7 | 6 | | | | | | | |
| Q | S Lucchi | 6 | 5 | 3 | 5 | L Garrone | 6 | 5 | 3 | | | | | | | |
| 5 | L Garrone | 4 | 7 | 6 | | | | | | | | | | | | |

### Bottom half

| 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 | M Paz | 6 | 6 | | | | | | | | | | | | | | |
| Q | N Tschan | 2 | 3 | 6 | M Paz | 4 | 5 | | | | | | | | | | |
| | D Szabová | 6 | 6 | | D Szabová | 6 | 7 | | | | | | | | | | |
| | P Kamstra | 2 | 1 | | | | | | | D Szabová | 6 | 6 | | | | | |
| | E Birioukova | 0 | 1 | | | | | | 3 | C Cunningham | 2 | 3 | | | | | |
| Q | M Miyauchi | 6 | 6 | Q | M Miyauchi | 0 | 7 | 1 | | | | | | | | | |
| | M Oremans | 2 | 1 | 3 | C Cunningham | 6 | 5 | 6 | | | | | | | | | |
| 3 | C Cunningham | 6 | 6 | | | | | | | | | | | | D Szabová | 2 | 1 |
| 8 | C Bartos | 6 | 6 | | | | | | | | | | | 2 | K Piccolini | 6 | 6 |
| | L Corsato | 4 | 1 | 8 | C Bartos | 1 | 6$^2$ | | | | | | | | | | |
| Q | A Kerek | 6$^5$ | 3 | | E Maniokova | 6 | 7$^7$ | | | | | | | | | | |
| | E Maniokova | 7$^7$ | 6 | | | | | | | E Maniokova | 6 | 6$^7$ | 4 | | | | |
| | L Golarsa | 6 | 6 | | | | | | 2 | K Piccolini | 3 | 7$^9$ | 6 | | | | |
| | N Dahlman | 3 | 3 | | L Golarsa | 2 | 1 | | | | | | | | | | |
| WC | M Pérez Roldán | 4 | 1 | 2 | K Piccolini | 6 | 6 | | | | | | | | | | |
| 2 | K Piccolini | 6 | 6 | | | | | | | | | | | | | | |