| Singles | |
|---|---|
| 1987 Athens Open | |
| Champion | |
| Runner-up | |
| Final score | 6–2, 6–3 |
| Draw | 32 |
| Seeds | 8 |
Henrik Sundström was the defending champion but did not participate this year.
Guillermo Pérez Roldán won the tournament, beating Tore Meinecke in the final, 6–2, 6–3.
| Semifinals | Final | ||||||||||||
| | 6 | 6 | |||||||||||
| | 4 | 4 | |||||||||||
| | 2 | 3 | |||||||||||
| 4 | | 6 | 6 | ||||||||||
| 4 | | 6 | 6 | 6 | |||||||||
| | 7 | 4 | 2 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | | 3 | 6 | 3 | |||||||||||||||||||||||
| | 6 | 3 | 6 | | 2 | 2 | |||||||||||||||||||||
| | 6 | 6 | | 6 | 6 | ||||||||||||||||||||||
| | 1 | 0 | | 6 | 6 | 6 | |||||||||||||||||||||
| Q | | 3 | 6 | 6 | Q | | 1 | 7 | 3 | ||||||||||||||||||
| | 6 | 4 | 0 | Q | | 7 | 6 | ||||||||||||||||||||
| | 4 | 2 | 8 | | 6 | 0 | |||||||||||||||||||||
| 8 | | 6 | 6 | | 6 | 6 | |||||||||||||||||||||
| 3 | | 4 | 0 | | 4 | 4 | |||||||||||||||||||||
| | 6 | 6 | | 6 | 4 | 6 | |||||||||||||||||||||
| | 3 | 3 | | 2 | 6 | 7 | |||||||||||||||||||||
| | 6 | 6 | | 3 | 5 | ||||||||||||||||||||||
| | 4 | 0 | | 6 | 7 | ||||||||||||||||||||||
| | 6 | 6 | | 1 | 7 | 6 | |||||||||||||||||||||
| | 6 | 1 | 6 | | 6 | 6 | 3 | ||||||||||||||||||||
| 6 | | 7 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | | 7 | 6 | ||||||||||||||||||||||||
| | 5 | 1 | 5 | | 6 | 7 | |||||||||||||||||||||
| | 7 | 6 | | 2 | 6 | ||||||||||||||||||||||
| WC | | 6 | 2 | 5 | | 4 | 4 | ||||||||||||||||||||
| Q | | 6 | 7 | 6 | 4 | | 6 | 6 | |||||||||||||||||||
| Q | | 7 | 6 | 2 | Q | | 4 | 2 | |||||||||||||||||||
| WC | | 2 | 2 | 4 | | 6 | 6 | ||||||||||||||||||||
| 4 | | 6 | 6 | 4 | | 6 | 6 | 6 | |||||||||||||||||||
| 7 | | 6 | 6 | 6 | | 7 | 4 | 2 | |||||||||||||||||||
| | 7 | 4 | 7 | | 6 | 3 | |||||||||||||||||||||
| | 4 | 1 | LL | | 2 | 1r | |||||||||||||||||||||
| LL | | 6 | 6 | | 7 | 6 | |||||||||||||||||||||
| | 6 | 2 | 6 | 2 | | 6 | 4 | ||||||||||||||||||||
| Q | | 4 | 6 | 3 | | 2 | 4 | ||||||||||||||||||||
| | 5 | 0 | 2 | | 6 | 6 | |||||||||||||||||||||
| 2 | | 7 | 6 | ||||||||||||||||||||||||
The 1994 Grand Prix Hassan II men's singles competition. Renzo Furlan was the champion, defeating Karim Alami 6–2, 6–2. Guillermo Pérez Roldán was the defending champion.
Javier Sánchez defeated Guillermo Pérez Roldán 6–2, 7–6 to win the 1988 Buenos Aires Grand Prix singles competition. Perez-Roldan was the defending champion.
Andrei Chesnokov was the defending champion, but did not participate this year.
Tarik Benhabiles was the defending champion but lost in the second round to Thomas Muster.
Guillermo Pérez Roldán was the defending champion.
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.
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.
This was the first edition of the event.
Karel Nováček defeated Magnus Gustafsson in the final, 6–3, 6–3, 5–7, 0–6, 6–1 to win the singles tennis title at the 1991 Hamburg European Open.
Sergi Bruguera defeated Boris Becker in the final, 5–7, 6–4, 7–6(8–6), 7–6(7–4) to win the singles tennis title at the 1991 Monte Carlo Open.
Karel Nováček was the defending champion, but lost in the first round this year.
Mark Koevermans was the defending champion, but lost in the quarterfinals this year.
Ronald Agénor was the defending champion, but did not participate this year.
Guillermo Pérez Roldán was the defending champion, but lost in the quarterfinals this year.
Guillermo Pérez Roldán was the defending champion.
Horst Skoff was the defending champion, but lost in the final this year.
Mats Wilander was the defending champion, but lost in the third round to Ronald Agénor.
Mats Wilander was the defending champion, but did not compete this year.
Miloslav Mečíř was the defending champion, but did not compete this year.
Thomas Muster was the defending champion, but lost in the quarterfinals to Guillermo Pérez Roldán.