# 1991 CA-TennisTrophy – Singles

Anders Järryd was the defending champion of the singles event at the CA-TennisTrophy tennis tournament but lost in the quarterfinals to Michael Stich.
Stich won in the final 6–4, 6–4, 6–4 against Jan Siemerink.

## Seeds

* Michael Stich (champion)
* Jakob Hlasek (second round)
* Petr Korda (semifinals)
* Goran Prpić (first round)
* Andrei Cherkasov (second round)
* Alexander Volkov (second round)
* Horst Skoff (quarterfinals)
* Anders Järryd (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

### Final

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| 1 | Michael Stich | 6 | 2 | 6 | | | | | |
| 3 | Petr Korda | 4 | 6 | 2 | | | | | |
| 3 | Petr Korda | 4 | 6 | 2 | 1 | Michael Stich | 6 | 6 | 6 |
| | | | | | | Jan Siemerink | 4 | 4 | 4 |
| | Carl-Uwe Steeb | 3 | 4 | | | Jan Siemerink | 4 | 4 | 4 |
| | Jan Siemerink | 6 | 6 | | | | | | |

### Section 1

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | M Stich | 6 | 6 | | | | | | | | | | | | | | | |
| | L Lavalle | 3 | 4 | | 1 | M Stich | 6 | 6 | | | | | | | | | | |
| | P McEnroe | 7 | 6 | | | P McEnroe | 3 | 4 | | | | | | | | | | |
| | G Muller | 5 | 3 | | | | | | 1 | M Stich | 6 | 6 | | | | | | |
| WC | G Mandl | 4 | 2 | | | | | | 8 | A Järryd | 2 | 1 | | | | | | |
| | E Jelen | 6 | 6 | | | E Jelen | 6$^5$ | 3 | | | | | | | | | | |
| | C Pistolesi | 1 | 2 | | 8 | A Järryd | 7$^7$ | 6 | | | | | | | | | | |
| 8 | A Järryd | 6 | 6 | | | | | | | | | | | 1 | M Stich | 6 | 2 | 6 |
| 3 | P Korda | 4 | 6 | 6 | | | | | | | | | | 3 | P Korda | 4 | 6 | 2 |
| Q | A Hombrecher | 6 | 1 | 2 | 3 | P Korda | 6 | 6 | | | | | | | | | | |
| | L Jönsson | 1 | 7$^7$ | 6 | | L Jönsson | 2 | 4 | | | | | | | | | | |
| | M Vajda | 6 | 6$^2$ | 4 | | | | | 3 | P Korda | 4 | 6 | 6 | | | | | |
| | A Krickstein | 6 | 6 | | | | | | | A Krickstein | 6 | 2 | 1 | | | | | |
| Q | T Högstedt | 3 | 2 | | | A Krickstein | 6 | 6 | | | | | | | | | | |
| | A Mansdorf | 6$^6$ | 7$^7$ | 6$^5$ | 5 | A Cherkasov | 3 | 4 | | | | | | | | | | |
| 5 | A Cherkasov | 7$^8$ | 6$^2$ | 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 |
| 6 | A Volkov | 6 | 6 | | | | | | | | | | | | | |
| | M Zoecke | 3 | 2 | | 6 | A Volkov | 2 | 7$^7$ | 3 | | | | | | | |
| Q | D Engel | 4 | 3 | | | C-U Steeb | 6 | 6$^4$ | 6 | | | | | | | |
| | C-U Steeb | 6 | 6 | | | | | | | | C-U Steeb | 7$^{10}$ | 7 | | | |
| WC | T Buchmayer | 7$^7$ | 6$^8$ | 4 | | | | | | | J Frana | 6$^8$ | 5 | | | |
| | R Krajicek | 6$^3$ | 7$^{10}$ | 6 | | R Krajicek | 6$^6$ | 6 | 6$^8$ | | | | | | | |
| | J Frana | 6 | 6 | | | J Frana | 7$^8$ | 4 | 7$^{10}$ | | | | | | | |
| 4 | G Prpić | 1 | 1 | | | | | | | | | | | C-U Steeb | 3 | 4 |
| 7 | H Skoff | 7$^7$ | 4 | 6 | | | | | | | | | | J Siemerink | 6 | 6 |
| | R Azar | 6$^4$ | 6 | 3 | 7 | H Skoff | 5 | 6 | 6 | | | | | | | |
| WC | A Antonitsch | 3 | 3 | | | P Baur | 7 | 3 | 1 | | | | | | | |
| | P Baur | 6 | 6 | | | | | | | 7 | H Skoff | 3 | 1 | | | |
| Q | P Vojtíšek | 4 | 3 | | | | | | | | J Siemerink | 6 | 6 | | | |
| | J Siemerink | 6 | 6 | | | J Siemerink | 6$^6$ | 7$^7$ | 6 | | | | | | | |
| | C Caratti | 2 | 2 | | 2 | J Hlasek | 7$^8$ | 6$^3$ | 3 | | | | | | | |
| 2 | J Hlasek | 6 | 6 | | | | | | | | | | | | | |