| Singles | |
|---|---|
| 1991 Swedish Open | |
| Champion |  Magnus Gustafsson |
| Runner-up |  Alberto Mancini |
| Final score | 6–1, 6–2 |
| Draw | 32 |
| Seeds | 8 |
Richard Fromberg was the defending champion, but did not compete this year.
Magnus Gustafsson won the title by defeating Alberto Mancini 6–1, 6–2 in the final. [1]
Andrei Cherkasov (first round) Magnus Gustafsson (champion)
Alexander Volkov (semifinals) Anders Järryd (first round)
Marcelo Filippini (second round) Nicklas Kulti (second round)
Mark Koevermans (first round) Alberto Mancini (final)| Semifinals | Final | ||||||||||||
| 8 | Alberto Mancini | 0 | 6 | 6 | |||||||||
| 3 | Alexander Volkov | 6 | 3 | 2 | |||||||||
| 8 | Alberto Mancini | 1 | 2 | ||||||||||
| 2 | Magnus Gustafsson | 6 | 6 | ||||||||||
| Christian Bergström | 6 | 3 | 2 | ||||||||||
| 2 | Magnus Gustafsson | 4 | 6 | 6 | |||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | A Cherkasov | 3 | 2 | ||||||||||||||||||||||||
| M Larsson | 6 | 6 | M Larsson | 6 | 6 | ||||||||||||||||||||||
| Q |  M Górriz | 3 | 6 | 3 | Q | L-A Wahlgren | 0 | 3 | |||||||||||||||||||
| Q | L-A Wahlgren | 6 | 3 | 6 | M Larsson | 6 | 3 | 4 | |||||||||||||||||||
 C Pistolesi | 6 | 6 | 8 | A Mancini | 4 | 6 | 6 | ||||||||||||||||||||
 T Champion | 4 | 0 | C Pistolesi | 6 | 3 | 2 | |||||||||||||||||||||
| Q | J Björkman | 3 | 1 | 8 | A Mancini | 3 | 6 | 6 | |||||||||||||||||||
| 8 | A Mancini | 6 | 6 | 8 | A Mancini | 0 | 6 | 6 | |||||||||||||||||||
| 3 | A Volkov | 6 | 6 | 3 | A Volkov | 6 | 3 | 2 | |||||||||||||||||||
 V Paloheimo | 4 | 4 | 3 | A Volkov | 6 | 4 | 6 | ||||||||||||||||||||
| M Pernfors | 6 | 6 | M Pernfors | 4 | 6 | 4 | |||||||||||||||||||||
| J Aguilera | 3 | 3 | 3 | A Volkov | 6 | 6 | |||||||||||||||||||||
| L Jonsson | 6 | 6 | L Jonsson | 2 | 1 | ||||||||||||||||||||||
| T Carbonell | 3 | 4 | L Jonsson | 6 | 6 | ||||||||||||||||||||||
 B Wuyts | 0r | 5 | M Filippini | 1 | 2 | ||||||||||||||||||||||
| 5 | M Filippini | 2 | |||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | N Kulti | 4 | 6 | 6 | |||||||||||||||||||||||
| Q |  J Anderson | 6 | 2 | 3 | 6 | N Kulti | 2 | 1 | |||||||||||||||||||
| C Bergström | 6 | 6 | C Bergström | 6 | 6 | ||||||||||||||||||||||
| A Rahunen | 1 | 2 | C Bergström | 3 | 6 | 6 | |||||||||||||||||||||
| WC | T Enqvist | 4 | 1 | J Gunnarsson | 6 | 2 | 2 | ||||||||||||||||||||
| J Gunnarsson | 6 | 6 | J Gunnarsson | 7 | 7 | ||||||||||||||||||||||
| E Masso | 6 | 6 | E Masso | 5 | 6 | ||||||||||||||||||||||
| 4 | A Järryd | 3 | 1 | C Bergström | 6 | 3 | 2 | ||||||||||||||||||||
| 7 | M Koevermans | 6 | 1 | 5 | 2 | M Gustafsson | 4 | 6 | 6 | ||||||||||||||||||
 P Arraya | 3 | 6 | 7 | P Arraya | 7 | 4 | 6 | ||||||||||||||||||||
| WC | D Engel | 1 | 7 | 6 | WC | D Engel | 6 | 6 | 4 | ||||||||||||||||||
| C Pioline | 6 | 5 | 4 | P Arraya | 1 | 2 | |||||||||||||||||||||
| WC | N Kroon | 7 | 4 | 6 | 2 | M Gustafsson | 6 | 6 | |||||||||||||||||||
 P Kühnen | 5 | 6 | 4 | WC | N Kroon | 4 | 7 | 1 | |||||||||||||||||||
 N Marques | 0 | 5 | 2 | M Gustafsson | 6 | 6 | 6 | ||||||||||||||||||||
| 2 | M Gustafsson | 6 | 7 | ||||||||||||||||||||||||
Thomas Muster defeated Aaron Krickstein in the final, 6–3, 6–1, 6–3 to win the singles tennis title at the 1992 Monte Carlo Open.
Andrei Chesnokov defeated Thomas Muster in the final, 7–5, 6–3, 6–3 to win the singles tennis title at the 1990 Monte Carlo Open.
Juan Aguilera defeated Boris Becker in the final, 6–1, 6–0, 7–6 to win the singles tennis title at the 1990 Hamburg European Open.
Thomas Muster defeated Andrei Chesnokov in the final, 6–1, 6–3, 6–1 to win the men's singles tennis title at the 1990 Italian Open.
Mats Wilander was the defending champion but lost in the third round to Alberto Mancini.
Michael Chang defeated Alberto Mancini in the final, 7–5, 7–5 to win the men's singles tennis title at the 1992 Miami Open. With the win, he completed the Sunshine Double.
Jakob Hlasek was the defending champion, but lost in the semifinals to seventh seed Jonas Svensson.
Brad Gilbert won the title, defeating Jonas Svensson 6–1, 6–3, in the final.
Guillermo Pérez Roldán was the defending champion, but lost in the quarterfinals this year.
Emilio Sánchez won the men's singles tennis title at the 1991 Italian Open after Alberto Mancini retired from the final, with the scoreline at 6–3, 6–1, 3–0.
Magnus Gustafsson was the defending champion, but lost in the first round to Tomas Nydahl.
Emilio Sánchez was the defending champion, but lost in the second round to Francisco Roig.
Marc-Kevin Goellner was the defending champion, but did not compete this year.
Andrei Medvedev was the defending champion, but lost in the second round to Ronald Agénor.
Miloslav Mečíř was the defending champion, but did not compete this year.
Magnus Gustafsson was the defending champion, but lost in the second round to Tomás Carbonell.
Magnus Gustafsson successfully defended his title, by defeating Tomás Carbonell 5–7, 7–5, 6–4 in the final.
Horacio de la Peña was the defending champion, but lost in the third round to Francisco Clavet.
Andrei Medvedev was the defending champion, but lost in the semifinals to Michael Stich.
Albert Costa was the defending champions, but chose to compete at Cincinnati in the same week.
Goran Ivanišević was the defending champion, but lost in the second round to Andrés Gómez.
1991 / Magnus Gustafsson [2] / Alberto Mancini [8] / 6-1, 6-2
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