title: 1991 Geneva Open – Singles
text: # 1991 Geneva Open – Singles
  
  Horst Skoff was the defending champion, but lost in the final this year.
  
  Thomas Muster won the title, defeating Skoff 6–2, 6–4 in the final.
  
  ## Seeds
  
  * Sergi Bruguera (quarterfinals)
  * Andrei Cherkasov (first round)
  * Goran Prpić (second round)
  * Horst Skoff (final)
  * Alberto Mancini (second round)
  * Marc Rosset (first round)
  * Guillermo Pérez Roldán (second round)
  * Omar Camporese (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 |
  | - | - | - | - | - | - | - | - |
  | | Thomas Muster | $7^7$ | $7^7$ | | | | |
  | WC | Andrei Medvedev | $6^3$ | $6^5$ | | | | |
  | WC | Andrei Medvedev | $6^3$ | $6^5$ | | Thomas Muster | 6 | 6 |
  | | | | | 4 | Horst Skoff | 2 | 4 |
  | 4 | Horst Skoff | $7^{10}$ | 6 | 4 | Horst Skoff | 2 | 4 |
  | | Jordi Arrese | $6^8$ | 2 | | | | |
  
  ### 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | 1 | S Bruguera | 6 | 6 | | | | | | | | | | | | | | | |
  | | B Wuyts | 3 | 2 | | 1 | S Bruguera | $7^8$ | 1 | 6 | | | | | | | | | |
  | WC | C Mezzadri | 6 | 7 | | WC | C Mezzadri | $6^6$ | 6 | 1 | | | | | | | | | |
  | WC | T Tulasne | 3 | 5 | | | | | | | 1 | S Bruguera | 6 | 4 | 4 | | | | |
  | | T Muster | 6 | 7 | | | | | | | | T Muster | 4 | 6 | 6 | | | | |
  | | M Vajda | 3 | 5 | | | T Muster | 4 | 6 | 6 | | | | | | | | | |
  | | M Filippini | $6^1$ | 3 | | 7 | G Pérez Roldán | 6 | 1 | 2 | | | | | | | | | |
  | 7 | G Pérez Roldán | $7^7$ | 6 | | | | | | | | | | | | | T Muster | $7^7$ | $7^7$ |
  | 3 | G Prpić | 4 | 6 | 6 | | | | | | | | | | | WC | A Medvedev | $6^3$ | $6^5$ |
  | | G Bloom | 6 | 4 | 4 | 3 | G Prpić | $7^9$ | 0 | 5 | | | | | | | | | |
  | | R Furlan | 4 | 5 | | Q | C Miniussi | $6^7$ | 6 | 7 | | | | | | | | | |
  | Q | C Miniussi | 6 | 7 | | | | | | | Q | C Miniussi | 4 | 7 | 5 | | | | |
  | | J Gunnarsson | 3 | 3 | | | | | | | WC | A Medvedev | 6 | 5 | 7 | | | | |
  | | E Masso | 6 | 6 | | | E Masso | 7 | $6^3$ | 1 | | | | | | | | | |
  | WC | A Medvedev | 6 | 6 | | WC | A Medvedev | 5 | $7^7$ | 6 | | | | | | | | | |
  | 6 | M Rosset | 2 | 1 | | | | | | | | | | | | | | | |
  
  ### 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 |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | 5 | A Mancini | 6 | $7^7$ | | | | | | | | | | | | | | | |
  | | L Mattar | 3 | $6^5$ | | 5 | A Mancini | 1 | 6 | 4 | | | | | | | | | |
  | | H de la Peña | $7^7$ | $7^7$ | | | H de la Peña | 6 | 3 | 6 | | | | | | | | | |
  | | F Davín | $6^5$ | $6^4$ | | | | | | | | H de la Peña | $6^3$ | 6 | 1 | | | | |
  | | P Baur | 6 | $6^5$ | 5 | | | | | | 4 | H Skoff | $7^7$ | 4 | 6 | | | | |
  | Q | M Merz | 3 | $7^7$ | 7 | Q | M Merz | 2 | 0 | | | | | | | | | | |
  | | G López | 2 | 0 | | 4 | H Skoff | 6 | 6 | | | | | | | | | | |
  | 4 | H Skoff | 6 | 6 | | | | | | | | | | | | 4 | H Skoff | $7^{10}$ | 6 |
  | 8 | O Camporese | 3 | 4 | | | | | | | | | | | | | J Arrese | $6^8$ | 2 |
  | Q | C Arriens | 6 | 6 | | Q | C Arriens | 5 | 7 | 5 | | | | | | | | | |
  | | J Oncins | 6 | 7 | | | J Oncins | 7 | 5 | 7 | | | | | | | | | |
  | Q | J Gisbert-Schultze | 4 | 5 | | | | | | | | J Oncins | 6 | 4 | 5 | | | | |
  | | V Paloheimo | $7^7$ | 4 | 6 | | | | | | | J Arrese | 4 | 6 | 7 | | | | |
  | | R Agénor | $6^5$ | 6 | 4 | | V Paloheimo | 2 | 6 | 5 | | | | | | | | | |
  | | J Arrese | 6 | 4 | 6 | | J Arrese | 6 | 3 | 7 | | | | | | | | | |
  | 2 | A Cherkasov | 4 | 6 | 1 | | | | | | | | | | | | | | |
  