 Australia: Australian Open - Doubles - Main |
|---|
| 1/32-finals | Lopez M. A./Mantilla F. | Gaudio G./Karlovic I. | 0:2 (4:6, 5:7) | details | 23.01.2004 |
 Switzerland: Basel - Doubles - Main |
|---|
| Quarter-finals | Arnold-Ker L./Hood M. | Lopez M. A./Mantilla F. | 2:0 (6:3, 6:1) | details | 24.10.2003 |
| 1/8-finals | Lopez M. A./Mantilla F. | Bastl G./Heuberger I. | 2:0 (6:4, 6:4) | details | 21.10.2003 |
 USA: US Open - Doubles - Main |
|---|
| 1/16-finals | Lopez M. A./Mantilla F. | Bryan B./Bryan M. | 0:2 (5:7, 4:6) | details | 27.08.2003 |
| 1/32-finals | Lopez M. A./Mantilla F. | Dabir P./Isner J. | 2:0 (7:6, 6:2) | details | 26.08.2003 |
 United Kingdom: Wimbledon - Doubles - Main |
|---|
| 1/32-finals | Beck K./Kucera K. | Lopez M. A./Mantilla F. | 3:2 (4:6, 6:7, 6:4, 6:2, 6:4) | details | 24.06.2003 |
