 Italy: Genoa - Doubles - Main |
|---|
| Quarter-finals | Cierro M./Colombo S. | Gorriz M. A./Mora A. | 0:2 (6:7, 4:6) | details | 19.06.1991 |
| 1/8-finals | Gaudenzi A./Muster T. | Cierro M./Colombo S. | 1:2 (6:4, 4:6, 4:6) | details | 17.06.1991 |
| Italy: Rome - Doubles - Main |
|---|
| 1/16-finals | Cierro M./Colombo S. | Bahrami M./Winogradsky E. | 0:2 (3:6, 4:6) | details | 13.05.1991 |
 Austria: Kitzbuhel - Doubles - Main |
|---|
| 1/16-finals | Stankovic B./Vogel R. | Cierro M./Colombo S. | 2:0 (6:1, 6:2) | details | 30.07.1990 |
 Monaco: Monte Carlo - Doubles - Main |
|---|
| 1/16-finals | Novacek K./Srejber M. | Cierro M./Colombo S. | 2:0 (7:6, 6:2) | details | 23.04.1990 |
 Morocco: Casablanca - Doubles - Main |
|---|
| Semi-finals | Cierro M./Colombo S. | Woodbridge T./Youl S. | 0:2 (3:6, 2:6) | details | 10.03.1990 |
| Quarter-finals | Cierro M./Colombo S. | Henricsson P./Utgren N. | 2:1 (6:7, 6:1, 7:5) | details | 07.03.1990 |
| 1/8-finals | Segarceanu F./Vajda M. | Cierro M./Colombo S. | 0:2 (4:6, 4:6) | details | 05.03.1990 |
