# 1991 Holsten International – Singles

Petr Korda defeated Arnaud Boetsch 6–3, 6–4 in the final to secure the title.

## Seeds

The text in italics indicates the round in which that seed was eliminated.
* Michael Stich (quarterfinals)
* Karel Nováček (first round)
* Sergi Bruguera (second round)
* Petr Korda (champion)
* Alexander Volkov (quarterfinals)
* Jonas Svensson (second round)
* Anders Järryd (semifinals)
* Cristiano Caratti (first round)

## Draws
### Key

* Q - Qualifier
* WC - Wild card

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Finals | Finals | Finals | Finals |
| 7 | Anders Järryd | 3 | 6 | 2 | | | | |
| 4 | Petr Korda | 6 | 1 | 6 | 4 | Petr Korda | 6 | 6 |
| Q | Arnaud Boetsch | 6 | 6 | | Q | Arnaud Boetsch | 3 | 4 |
| | Patrik Kühnen | 3 | 2 | | | | | |

### 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 | Semifinals |
| 1 | M Stich | 6 | 3 | 7 | | | | | | | | | | | | | | | |
| | C Steeb | 2 | 6 | 5 | 1 | M Stich | 6 | 6 | | | | | | | | | | | |
| | J Siemerink | 7 | 7$^{10}$ | | | J Siemerink | 2 | 3 | | | | | | | | | | | |
| | E Jelen | 6 | 6$^8$ | | | | | | | 1 | M Stich | 4 | 6$^5$ | | | | | | |
| WC | J Van Herck | 3 | 6 | 3 | | | | | | 7 | A Järryd | 6 | 7$^7$ | | | | | | |
| WC | F Santoro | 6 | 3 | 6 | WC | F Santoro | 3 | 7$^7$ | 3 | | | | | | | | | | |
| | J Kriek | 3 | 2 | | 7 | A Järryd | 6 | 6$^5$ | 6 | | | | | | | | | | |
| 7 | A Järryd | 6 | 6 | | | | | | | | | | | | 7 | A Järryd | 3 | 6 | 2 |
| 4 | P Korda | 6 | 1 | 6 | | | | | | | | | | | 4 | P Korda | 6 | 1 | 6 |
| | R Agénor | 3 | 6 | 3 | 4 | P Korda | 7$^7$ | 6 | | | | | | | | | | | |
| Q | D Visser | 6$^3$ | 7$^{11}$ | 4 | Q | U Riglewski | 6$^4$ | 3 | | | | | | | | | | | |
| Q | U Riglewski | 7$^7$ | 6$^9$ | 6 | | | | | | 4 | P Korda | 6 | 5 | 6 | | | | | |
| | R Gilbert | 5 | 1 | | | | | | | 5 | A Volkov | 3 | 7 | 1 | | | | | |
| | G Raoux | 7 | 6 | | | G Raoux | 6 | 4 | 2 | | | | | | | | | | |
| | C Saceanu | 7$^7$ | 3 | 6$^2$ | 5 | A Volkov | 4 | 6 | 6 | | | | | | | | | | |
| 5 | A Volkov | 6$^4$ | 6 | 7$^7$ | | | | | | | | | | | | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | J Svensson | 6 | 6 | | | | | | | | | | | | | | |
| | P Baur | 3 | 4 | | 6 | J Svensson | 2 | 1 | | | | | | | | | |
| Q | A Boetsch | 6 | 6 | | Q | A Boetsch | 6 | 6 | | | | | | | | | |
| | C Bergström | 4 | 2 | | | | | | | Q | A Boetsch | 6 | 6 | | | | |
| | J Fleurian | 3 | 7$^7$ | 6 | | | | | | | J Fleurian | 0 | 3 | | | | |
| Q | K Jones | 6 | 6$^5$ | 4 | | J Fleurian | 6 | 6 | | | | | | | | | |
| WC | M Zoecke | 3 | 6 | 3 | 3 | S Bruguera | 4 | 3 | | | | | | | | | |
| 3 | S Bruguera | 6 | 1 | 6 | | | | | | | | | | Q | A Boetsch | 6 | 6 |
| 8 | C Caratti | 3 | 3 | | | | | | | | | | | | P Kühnen | 3 | 2 |
| | T Mayotte | 6 | 6 | | | T Mayotte | 6 | 5 | 4 | | | | | | | | |
| | P Kühnen | 6 | 6 | | | P Kühnen | 3 | 7 | 6 | | | | | | | | |
| | A Mronz | 3 | 4 | | | | | | | | P Kühnen | 7$^7$ | 6 | | | | |
| | C Pioline | 6 | 4 | 6 | | | | | | | C Pioline | 6$^5$ | 3 | | | | |
| | T Champion | 4 | 6 | 3 | | C Pioline | 6 | 6 | | | | | | | | | |
| | K Curren | 7$^7$ | 6 | | | K Curren | 3 | 2 | | | | | | | | | |
| 2 | K Nováček | 6$^3$ | 3 | | | | | | | | | | | | | | |