De La Pena Horacio / Mattar Luis (Argentina / Brazil)
- Show:
 Germany: Hamburg - Doubles - Main | |||||||
|---|---|---|---|---|---|---|---|
| 1/16-finals | De La Pena H./Mattar L. | Bloom G./Boetsch A. | 0:2 (4:6, 4:6) | details | 06.05.1991 | ||
 USA: Indian Wells - Doubles - Main | |||||||
| 1/16-finals | Fitzgerald J./Jones K. | De La Pena H./Mattar L. | 2:0 (6:2, 6:4) | details | 04.03.1991 | ||
 Switzerland: Gstaad - Doubles - Main | |||||||
| Semi-finals | De La Pena H./Mattar L. | Camporese O./Sanchez J. | 1:2 (4:6, 6:3, 3:6) | details | 14.07.1990 | ||
| Quarter-finals | De La Pena H./Mattar L. | Luza G./Mortensen M. | 2:0 (7:6, 6:3) | details | 11.07.1990 | ||
| 1/8-finals | Cihak J./Suk C. | De La Pena H./Mattar L. | 0:2 (3:6, 6:7) | details | 09.07.1990 | ||