# 1991 Manchester Open – Singles

Goran Ivanišević defeated Pete Sampras 6–4, 6–4 in the final to secure the title.

## Seeds

* Pete Sampras (final)
* Goran Ivanišević (champion)
* John McEnroe (first round)
* Brad Gilbert (first round)
* Goran Prpić (first round)
* Alexander Volkov (second round)
* Derrick Rostagno (second round)
* Horst Skoff (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 |
| 1 | Pete Sampras | 6 | 7 | | | | |
| | Veli Paloheimo | 4 | 5 | | | | |
| | Veli Paloheimo | 4 | 5 | 1 | Pete Sampras | 4 | 4 |
| | | | | Q/2 | Goran Ivanišević | 6 | 6 |
| | Gary Muller | 6$^9$ | 6$^4$ | Q/2 | Goran Ivanišević | 6 | 6 |
| Q/2 | Goran Ivanišević | 7$^{11}$ | 7$^7$ | | | | |

### Section 1

| 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 |
| 1 | P Sampras | 7 | 4 | 6 | | | | | | | | | | | | | | |
| | C Bergström | 5 | 6 | 2 | 1 | P Sampras | 7$^7$ | 4 | 6 | | | | | | | | | |
| Q | N Pereira | 6$^2$ | 7$^7$ | 3 | | M Washington | 6$^5$ | 6 | 2 | | | | | | | | | |
| | M Washington | 7$^7$ | 6$^4$ | 6 | | | | | | 1 | P Sampras | 7 | 6 | | | | | |
| | W Masur | 6 | 3 | 6 | | | | | | | W Masur | 5 | 2 | | | | | |
| | J Grabb | 4 | 6 | 3 | | W Masur | 6 | 6 | | | | | | | | | | |
| | C Saceanu | 6 | 1 | 5 | 7 | D Rostagno | 4 | 4 | | | | | | | | | | |
| 7 | D Rostagno | 4 | 6 | 7 | | | | | | | | | | | 1 | P Sampras | 6 | 7 |
| 4 | B Gilbert | 2 | 0 | | | | | | | | | | | | | V Paloheimo | 4 | 5 |
| | G Bloom | 6 | 6 | | | G Bloom | 7$^7$ | 4 | 5 | | | | | | | | | |
| | J Siemerink | 6$^2$ | 2 | | | V Paloheimo | 6$^2$ | 6 | 7 | | | | | | | | | |
| | V Paloheimo | 7$^7$ | 6 | | | | | | | | V Paloheimo | 3 | 6 | 6 | | | | |
| WC | M Petchey | 1 | 7 | 2 | | | | | | | A Mansdorf | 6 | 3 | 4 | | | | |
| | P Lundgren | 6 | 5 | 6 | | P Lundgren | 6$^5$ | 6$^1$ | | | | | | | | | | |
| | A Mansdorf | 3 | 6 | 6 | | A Mansdorf | 7$^7$ | 7$^7$ | | | | | | | | | | |
| 5 | G Prpić | 6 | 3 | 3 | | | | | | | | | | | | | | |

### Section 2

| 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 |
| 6 | A Volkov | 6 | 7$^7$ | | | | | | | | | | | | | | | |
| | L Mattar | 2 | 6$^1$ | | 6 | A Volkov | 6$^3$ | 6$^4$ | | | | | | | | | | |
| Q | C Pridham | 2 | 5 | | | G Muller | 7$^7$ | 7$^7$ | | | | | | | | | | |
| | G Muller | 6 | 7 | | | | | | | | G Muller | 3 | 7$^7$ | 6 | | | | |
| | T Witsken | 7$^9$ | 6 | | | | | | | | T Witsken | 6 | 6$^3$ | 2 | | | | |
| | E Jelen | 6$^7$ | 1 | | | T Witsken | 6 | 6 | | | | | | | | | | |
| | C Caratti | 7$^7$ | 7$^7$ | | | C Caratti | 3 | 4 | | | | | | | | | | |
| 3 | J McEnroe | 6$^5$ | 6$^5$ | | | | | | | | | | | | | G Muller | 6$^9$ | 6$^4$ |
| 8 | H Skoff | 4 | 6$^1$ | | | | | | | | | | | | Q/2 | G Ivanišević | 7$^{11}$ | 7$^7$ |
| Q | A Thoms | 6 | 7$^7$ | | Q | A Thoms | 2 | 7$^9$ | 7 | | | | | | | | | |
| | R Krajicek | 6 | 2 | 4 | | O Camporese | 6 | 6$^7$ | 5 | | | | | | | | | |
| | O Camporese | 3 | 6 | 6 | | | | | | Q | A Thoms | 5 | 3 | | | | | |
| WC | J Bates | 6 | 7$^7$ | | | | | | | 2 | G Ivanišević | 7 | 6 | | | | | |
| | P Haarhuis | 4 | 6$^4$ | | WC | J Bates | 3 | 4 | | | | | | | | | | |
| WC | A Castle | 5 | 6$^3$ | | Q/2 | G Ivanišević | 6 | 6 | | | | | | | | | | |
| Q/2 | G Ivanišević | 7 | 7$^7$ | | | | | | | | | | | | | | | |